Publications
2000 |
Miller, David; Saenz-Otero, A; Wertz, J; Chen, A; Berkowski, G; Brodel, C; Carlson, S; Carpenter, D; Chen, S; Cheng, S; others, SPHERES: a testbed for long duration satellite formation flying in micro-gravity conditions Inproceedings Proceedings of the AAS/AIAA space flight mechanics meeting, pp. 167–179, Clearwater, Florida, January 2000. BibTeX | Tags: @inproceedings{miller2000spheres, title = {SPHERES: a testbed for long duration satellite formation flying in micro-gravity conditions}, author = {David Miller and A Saenz-Otero and J Wertz and A Chen and G Berkowski and C Brodel and S Carlson and D Carpenter and S Chen and S Cheng and others}, year = {2000}, date = {2000-01-01}, booktitle = {Proceedings of the AAS/AIAA space flight mechanics meeting}, pages = {167--179}, organization = {Clearwater, Florida, January}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Hacker, Troy L Performance Analysis of a Space-Based GMTI Radar System Using Separated Spacecraft Interferometry PhD Thesis 2000. @phdthesis{hackerPerformanceAnalysisSpaceBased2000, title = {Performance Analysis of a Space-Based GMTI Radar System Using Separated Spacecraft Interferometry}, author = {Troy L Hacker}, year = {2000}, date = {2000-01-01}, number = {May}, abstract = {The development of a model to assess the radar performance capabilities of a sparse aperture space-based GMTI radar system is presented. Airborne radars have provided reliable detection of moving targets for many years. Recent technological advancements have allowed the deployment of radar systems in space to improve global coverage. Additional radar performance benefits from space-based platforms are made possible with clusters of collaborative microsatellites. Using quantitative capability metrics, specifically the probability of detection and the minimum detectable velocity, the performance of the radar system can be modeled to enable effective and unbiased comparison of candidate system architectures. A design study based on the space-based GMTI radar reference mission for the Air Force's TechSat 21 program was conducted to identify viable system design configurations that satisfy specific radar performance requirements. A comprehensive analysis of the cost, reliability, and performance considerations for the complete TechSat 21 system is proposed.}, keywords = {}, pubstate = {published}, tppubtype = {phdthesis} } The development of a model to assess the radar performance capabilities of a sparse aperture space-based GMTI radar system is presented. Airborne radars have provided reliable detection of moving targets for many years. Recent technological advancements have allowed the deployment of radar systems in space to improve global coverage. Additional radar performance benefits from space-based platforms are made possible with clusters of collaborative microsatellites. Using quantitative capability metrics, specifically the probability of detection and the minimum detectable velocity, the performance of the radar system can be modeled to enable effective and unbiased comparison of candidate system architectures. A design study based on the space-based GMTI radar reference mission for the Air Force's TechSat 21 program was conducted to identify viable system design configurations that satisfy specific radar performance requirements. A comprehensive analysis of the cost, reliability, and performance considerations for the complete TechSat 21 system is proposed. |
Khayms, Vadim Advanced Propulsion for Microsatellites in Partial Fullllment of the Requirements for the Degree of Doctor of Philosophy in Aeronautics & Astronautics PhD Thesis 2000. @phdthesis{Khayms2000, title = {Advanced Propulsion for Microsatellites in Partial Fullllment of the Requirements for the Degree of Doctor of Philosophy in Aeronautics & Astronautics}, author = {Vadim Khayms}, year = {2000}, date = {2000-01-01}, abstract = {Microsatellites have become increasingly popular in recent years as they ooer sig-niicant cost savings, higher reliability, and are generally more aaordable for a large variety of commercial applications. Since many microsatellite missions require consid-erable propulsion capabilities, miniaturization of the propulsion subsystem is critical in the design of most miniature spacecraft. A broad range of existing propulsion technologies have been considered for the purpose of identifying those devices which maintain high performance at small scale. Scaling laws were developed for each of the selected devices so as to preserve, whenever possible, the basic non-dimensional quantities which ultimately determine the performance of the individual thrusters at small scale. Hall thrusters were initially identiied as most promising. In an eeort to miniaturize the Hall thruster, a numberof complications have been encountered. Some of the most troublesome were higher magnetic requirements, larger internal heat uxes and temperatures, and diiculties associated with the manufacturing of the various miniaturized components. In order to validate the proposed scaling laws, a 50 Watt Hall thruster has been designed, manufactured, and tested in a vacuum tank. Results of the experimental testing indicate that, although the maximum thrust levels obtained were on the order of 1.8 mN, about two thirds of the nominal design value, the propellant utilization eeciencies were unexpectedly low at approximately 40. Close examination of the magnetic assembly has shown that the tip of the iron center pole was overheating during operation due to the insuucient heat conduction. The tip temperatures were estimated to reach 900 o C, exceeding the Curie point of iron. As a consequence of the change in the magnetic eld proole and the resultant leakage of electrons, the observed ionization fraction and, therefore, the utilization eeciency were lower than expected. Despite the low eeciencies, which were most likely caused by the design imperfections rather than physical limitations, the eeort to miniaturize a Hall thruster has provided a numberof useful insights for any such attempts in the future. Most importantly, this work has highlighted the generic dif-culty, common to all plasma thrusters, associated with the increase of the plasma density as the scale of the device is reduced. The consequences of strict scaling, most notably the higher particle uxes which cause an increase in the erosion rates and}, keywords = {}, pubstate = {published}, tppubtype = {phdthesis} } Microsatellites have become increasingly popular in recent years as they ooer sig-niicant cost savings, higher reliability, and are generally more aaordable for a large variety of commercial applications. Since many microsatellite missions require consid-erable propulsion capabilities, miniaturization of the propulsion subsystem is critical in the design of most miniature spacecraft. A broad range of existing propulsion technologies have been considered for the purpose of identifying those devices which maintain high performance at small scale. Scaling laws were developed for each of the selected devices so as to preserve, whenever possible, the basic non-dimensional quantities which ultimately determine the performance of the individual thrusters at small scale. Hall thrusters were initially identiied as most promising. In an eeort to miniaturize the Hall thruster, a numberof complications have been encountered. Some of the most troublesome were higher magnetic requirements, larger internal heat uxes and temperatures, and diiculties associated with the manufacturing of the various miniaturized components. In order to validate the proposed scaling laws, a 50 Watt Hall thruster has been designed, manufactured, and tested in a vacuum tank. Results of the experimental testing indicate that, although the maximum thrust levels obtained were on the order of 1.8 mN, about two thirds of the nominal design value, the propellant utilization eeciencies were unexpectedly low at approximately 40. Close examination of the magnetic assembly has shown that the tip of the iron center pole was overheating during operation due to the insuucient heat conduction. The tip temperatures were estimated to reach 900 o C, exceeding the Curie point of iron. As a consequence of the change in the magnetic eld proole and the resultant leakage of electrons, the observed ionization fraction and, therefore, the utilization eeciency were lower than expected. Despite the low eeciencies, which were most likely caused by the design imperfections rather than physical limitations, the eeort to miniaturize a Hall thruster has provided a numberof useful insights for any such attempts in the future. Most importantly, this work has highlighted the generic dif-culty, common to all plasma thrusters, associated with the increase of the plasma density as the scale of the device is reduced. The consequences of strict scaling, most notably the higher particle uxes which cause an increase in the erosion rates and |
Miller, David; Saenz-Otero, A; Wertz, J; Chen, A; Berkowski, G; Brodel, C; Carlson, S; Carpenter, D; Chen, S; Cheng, S; others, SPHERES: a testbed for long duration satellite formation flying in micro-gravity conditions Inproceedings Proceedings of the AAS/AIAA space flight mechanics meeting, pp. 167–179, Clearwater, Florida, January 2000. BibTeX | Tags: @inproceedings{miller2000spheresb, title = {SPHERES: a testbed for long duration satellite formation flying in micro-gravity conditions}, author = {David Miller and A Saenz-Otero and J Wertz and A Chen and G Berkowski and C Brodel and S Carlson and D Carpenter and S Chen and S Cheng and others}, year = {2000}, date = {2000-01-01}, booktitle = {Proceedings of the AAS/AIAA space flight mechanics meeting}, pages = {167--179}, organization = {Clearwater, Florida, January}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
1999 |
Kong, Edmund MC; Miller, David W; Sedwick, Raymond J Exploiting orbital dynamics for aperture synthesis using distributed satellite systems- Applications to a visible Earth imager system Journal Article Spaceflight mechanics 1999, pp. 285–301, 1999. BibTeX | Tags: @article{kong1999exploiting, title = {Exploiting orbital dynamics for aperture synthesis using distributed satellite systems- Applications to a visible Earth imager system}, author = {Edmund MC Kong and David W Miller and Raymond J Sedwick}, year = {1999}, date = {1999-01-01}, journal = {Spaceflight mechanics 1999}, pages = {285--301}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Sedwick, Raymond J; Miller, David W; Kong, Edmund MC Mitigation of differential perturbations in clusters of formation flying satellites Journal Article Spaceflight mechanics 1999, pp. 323–342, 1999. BibTeX | Tags: @article{sedwick1999mitigation, title = {Mitigation of differential perturbations in clusters of formation flying satellites}, author = {Raymond J Sedwick and David W Miller and Edmund MC Kong}, year = {1999}, date = {1999-01-01}, journal = {Spaceflight mechanics 1999}, pages = {323--342}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Campbell, Mark E; How, Jonathan P; Grocott, Simon C O; Miller, David W On-orbit closed-loop control results for the middeck active control experiment Journal Article Journal of guidance, control, and dynamics, 22 (2), pp. 267–277, 1999. BibTeX | Tags: @article{campbell1999orbit, title = {On-orbit closed-loop control results for the middeck active control experiment}, author = {Mark E Campbell and Jonathan P How and Simon C O. Grocott and David W Miller}, year = {1999}, date = {1999-01-01}, journal = {Journal of guidance, control, and dynamics}, volume = {22}, number = {2}, pages = {267--277}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Pascal, Robert Jeffrey Actuator and Sensor Design and Modeling for Structural Acoustic Control PhD Thesis 1999. BibTeX | Tags: @phdthesis{pascalActuatorSensorDesign1999, title = {Actuator and Sensor Design and Modeling for Structural Acoustic Control}, author = {Robert Jeffrey Pascal}, year = {1999}, date = {1999-01-01}, number = {May}, keywords = {}, pubstate = {published}, tppubtype = {phdthesis} } |
de Weck, Olivier Integrated Modeling and Dynamics Simulation for the Next Generation Space Telescope Signature of Author PhD Thesis 1999. BibTeX | Tags: @phdthesis{deweckIntegratedModelingDynamics1999, title = {Integrated Modeling and Dynamics Simulation for the Next Generation Space Telescope Signature of Author}, author = {Olivier {de Weck}}, year = {1999}, date = {1999-01-01}, volume = {99}, number = {June}, keywords = {}, pubstate = {published}, tppubtype = {phdthesis} } |
Enright, John Patrick A Flight Software Development and Simulation Framework for Advanced Space Systems PhD Thesis 1999. BibTeX | Tags: @phdthesis{enrightFlightSoftwareDevelopment1999, title = {A Flight Software Development and Simulation Framework for Advanced Space Systems}, author = {John Patrick Enright}, year = {1999}, date = {1999-01-01}, number = {May}, keywords = {}, pubstate = {published}, tppubtype = {phdthesis} } |
Enright, John P; Miller, David W Investigation of Spacecraft Cluster Autonomy Through An Acoustic Imaging Interferometric Testbed PhD Thesis 1999. BibTeX | Tags: @phdthesis{enrightInvestigationSpacecraftCluster1999, title = {Investigation of Spacecraft Cluster Autonomy Through An Acoustic Imaging Interferometric Testbed}, author = {John P Enright and David W Miller}, year = {1999}, date = {1999-01-01}, number = {September}, keywords = {}, pubstate = {published}, tppubtype = {phdthesis} } |
Gutierrez, Homero L Performance Assessment and Enhancement of Precision Controlled Structures During Conceptual Design PhD Thesis 1999. @phdthesis{gutierrezPerformanceAssessmentEnhancement1999, title = {Performance Assessment and Enhancement of Precision Controlled Structures During Conceptual Design}, author = {Homero L Gutierrez}, year = {1999}, date = {1999-01-01}, number = {February}, abstract = {Future optical space systems such as interferometers and filled-aperture telescopes will extend the resolution and sensitivity offered by their on-orbit and ground-based predecessors. These systems face the challenge of achieving nanometer and milli-arcsecond precision con- trol of stellar light passing through the optical train of a lightweight, flexible structure subjected to various disturbances. It is advantageous to assess the performance of initial concepts of these precision systems early in the design stage to aid in the requirements flowdown and resource allocation process. A complete end-to-end performance assessment methodology is developed which incorporates disturbance, sensitivity, and uncertainty analysis tools within a common state-space framework. The disturbance analysis is conducted using either a time-domain, frequency-domain, or Lyapunov approach to obtain nominal predictions of performancemetric root-mean-square (RMS) values. Calculating power spectral density and cumulative RMS functions of the performancemetrics allows critical system modes and frequencies to be identified, and in some instances, contributions fromeach of the disturbances can be determined. A Lagrangemultiplier method is used to derive a governing equation for the sensitivities of the performance metrics with respect to model parameters. For a system whose structural dynamic equations are represented in modal form, the sensitivities can be calculated exactly and efficiently with respect to modal frequencies, masses, and damping ratios. The most critical modal parameters are carried into a parametric uncertainty analysis that seeks to identify the worst-case performance RMS values. A constrained optimization technique is described which searches for the worst-case performance over all allowable parameter values. When required, a performance enhancement approach is used to apply controlled structures technologies such as input/output isolation to achieve large performance changes. Structural modifications based on insight provided by a physi- cal parameter sensitivity analysis are then employed to ``fine tune'' the performance to keep the worst-case values within the requirements. Analytical physical parameter sensitivities are experimentally validated on a truss structure and used to implement stiffness and mass perturbations that reduce the tip displacement of a flexible appendage. The overall framework is applied to an integrated model of the Space Interferometry Mission to demonstrate its practical use on a large order system.}, keywords = {}, pubstate = {published}, tppubtype = {phdthesis} } Future optical space systems such as interferometers and filled-aperture telescopes will extend the resolution and sensitivity offered by their on-orbit and ground-based predecessors. These systems face the challenge of achieving nanometer and milli-arcsecond precision con- trol of stellar light passing through the optical train of a lightweight, flexible structure subjected to various disturbances. It is advantageous to assess the performance of initial concepts of these precision systems early in the design stage to aid in the requirements flowdown and resource allocation process. A complete end-to-end performance assessment methodology is developed which incorporates disturbance, sensitivity, and uncertainty analysis tools within a common state-space framework. The disturbance analysis is conducted using either a time-domain, frequency-domain, or Lyapunov approach to obtain nominal predictions of performancemetric root-mean-square (RMS) values. Calculating power spectral density and cumulative RMS functions of the performancemetrics allows critical system modes and frequencies to be identified, and in some instances, contributions fromeach of the disturbances can be determined. A Lagrangemultiplier method is used to derive a governing equation for the sensitivities of the performance metrics with respect to model parameters. For a system whose structural dynamic equations are represented in modal form, the sensitivities can be calculated exactly and efficiently with respect to modal frequencies, masses, and damping ratios. The most critical modal parameters are carried into a parametric uncertainty analysis that seeks to identify the worst-case performance RMS values. A constrained optimization technique is described which searches for the worst-case performance over all allowable parameter values. When required, a performance enhancement approach is used to apply controlled structures technologies such as input/output isolation to achieve large performance changes. Structural modifications based on insight provided by a physi- cal parameter sensitivity analysis are then employed to ``fine tune'' the performance to keep the worst-case values within the requirements. Analytical physical parameter sensitivities are experimentally validated on a truss structure and used to implement stiffness and mass perturbations that reduce the tip displacement of a flexible appendage. The overall framework is applied to an integrated model of the Space Interferometry Mission to demonstrate its practical use on a large order system. |
Jilla, Cyrus D Separated Spacecraft Interferometry – System Architecture Design and Optimization By PhD Thesis 1999. BibTeX | Tags: @phdthesis{Jilla1999, title = {Separated Spacecraft Interferometry – System Architecture Design and Optimization By}, author = {Cyrus D Jilla}, year = {1999}, date = {1999-01-01}, keywords = {}, pubstate = {published}, tppubtype = {phdthesis} } |
1998 |
Makarenko, Alexei A Force and Strain Feedback for Distributed Actuation PhD Thesis 1998. BibTeX | Tags: @phdthesis{makarenkoForceStrainFeedback1998, title = {Force and Strain Feedback for Distributed Actuation}, author = {Alexei A Makarenko}, year = {1998}, date = {1998-01-01}, number = {July}, keywords = {}, pubstate = {published}, tppubtype = {phdthesis} } |
Miller, David W; How, Jonathan P; Campbell, Mark E; Grocott, Simon; Liu, Ketao; Glaese, Roger M; Tuttle, Timothy Flight results from the middeck active control experiment (MACE) Journal Article AIAA journal, 36 (3), pp. 432–440, 1998. BibTeX | Tags: @article{miller1998flight, title = {Flight results from the middeck active control experiment (MACE)}, author = {David W Miller and Jonathan P How and Mark E Campbell and Simon Grocott and Ketao Liu and Roger M Glaese and Timothy Tuttle}, year = {1998}, date = {1998-01-01}, journal = {AIAA journal}, volume = {36}, number = {3}, pages = {432--440}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Enright, John; Jilla, Cyrus; Miller, David Modularity and spacecraft cost Journal Article Journal of Reducing Space Mission Cost, 1 (2), pp. 133–158, 1998. BibTeX | Tags: @article{enright1998modularity, title = {Modularity and spacecraft cost}, author = {John Enright and Cyrus Jilla and David Miller}, year = {1998}, date = {1998-01-01}, journal = {Journal of Reducing Space Mission Cost}, volume = {1}, number = {2}, pages = {133--158}, publisher = {Springer}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Onishi, Tatsuo Electron Current Collection by a Bare Wire Using Particle-in-Cell Method PhD Thesis 1998. Abstract | Links | BibTeX | Tags: @phdthesis{onishiElectronCurrentCollection1998, title = {Electron Current Collection by a Bare Wire Using Particle-in-Cell Method}, author = {Tatsuo Onishi}, doi = {10.2514/6.1998-2828}, year = {1998}, date = {1998-01-01}, abstract = {A Par tide.-In-Cell (PIC) method is developed and applied to simulate the electron current collection by a positively charged tether in a quiescent unmagnetized plasma under the Maxwellian collisionless condition. We compare our result with the exact solution to validate our code. This simulation is performed with the help of a non-rectangular grid and a new treatment of the outside boundary condition. The error induced by a non-rectangular grid is calculated and the effect of it is considered. The outside boundary condition based on the qausineutrality improves the accuracy of the amount of current collected by the tether. A very small ion mass is used and it is verified to speed up the computation considerably without loss of quality in the result. The comparison with the exact solution shows that our code provides good qualitative and quantitative approximations.}, keywords = {}, pubstate = {published}, tppubtype = {phdthesis} } A Par tide.-In-Cell (PIC) method is developed and applied to simulate the electron current collection by a positively charged tether in a quiescent unmagnetized plasma under the Maxwellian collisionless condition. We compare our result with the exact solution to validate our code. This simulation is performed with the help of a non-rectangular grid and a new treatment of the outside boundary condition. The error induced by a non-rectangular grid is calculated and the effect of it is considered. The outside boundary condition based on the qausineutrality improves the accuracy of the amount of current collected by the tether. A very small ion mass is used and it is verified to speed up the computation considerably without loss of quality in the result. The comparison with the exact solution shows that our code provides good qualitative and quantitative approximations. |
Oyerokun, Folusho Taiwo A Theoretical Study on Alkali Seeding of Arcjet Thrusters PhD Thesis 1998. @phdthesis{Oyerokun1998, title = {A Theoretical Study on Alkali Seeding of Arcjet Thrusters}, author = {Folusho Taiwo Oyerokun}, year = {1998}, date = {1998-01-01}, abstract = {A model was developed to assess the feasibility of reducing the frozen flow losses in a hydrogen arcjet by adding very small amounts of easily ionizable cesium vapor? Within reasonable constraints on the constrictor geometry, and without allowing the electron temperature to exceed about 7000K, both the ionization and the hydrogen dissociation losses can be essentially eliminated and a specific impulse of about 850 seconds obtained. Thesis Supervisor: Dr. Manuel Martinez-Sanchez}, keywords = {}, pubstate = {published}, tppubtype = {phdthesis} } A model was developed to assess the feasibility of reducing the frozen flow losses in a hydrogen arcjet by adding very small amounts of easily ionizable cesium vapor? Within reasonable constraints on the constrictor geometry, and without allowing the electron temperature to exceed about 7000K, both the ionization and the hydrogen dissociation losses can be essentially eliminated and a specific impulse of about 850 seconds obtained. Thesis Supervisor: Dr. Manuel Martinez-Sanchez |
Robertson, Darrel Kim Numerical Model of an Alkali Seeded PhD Thesis 1998. BibTeX | Tags: @phdthesis{Robertson1998, title = {Numerical Model of an Alkali Seeded}, author = {Darrel Kim Robertson}, year = {1998}, date = {1998-01-01}, keywords = {}, pubstate = {published}, tppubtype = {phdthesis} } |
Shaw, Graeme B The Generalized Information Network Analysis Methodology for Distributed Satellite Systems PhD Thesis 1998. @phdthesis{Shaw1998, title = {The Generalized Information Network Analysis Methodology for Distributed Satellite Systems}, author = {Graeme B Shaw}, year = {1998}, date = {1998-01-01}, abstract = {A systematic analysis methodology for distributed satellite systems is developed that is generalizable and can be applied to any satellite mission in communications, sensing or navigation. The primary enabler is that almost all satellite applications involve the collection and dissemination of information and can thus be treated as modular information processing networks. This generalization alllows the adoption of the mathematics for information network flow, leading to a logical classification scheme for satellite systems. The benefits and issues that are characteristic of each system class are identified, in terms of their capability, performance and cost. The quantitative analysis methodology specifies measurable, unambiguous metrics for the cost, capability, performance, and adaptability. The Capabilities are characterized by for quanlity of service parameters that relate to the isolation, rate, integrity and availability of the information transferred between origin-destination pairs within a market. Performance is the probability of satisfying the user's requirements for these parameters. The Cost per Function metric is the average cost incurred to provide satisfactory service to a single user, and Adaptability metrics are sensitivity to indicators. Validation of the methodology is provided by a comprehensive quantitative analysis of the NAVSTAR Global Positioning System, in which the calculated capabilities agree with measured data to within 3%. The utility of the methodology for comparative analysis highlighted in a rigorous competitive assessment of there proposed broadband communication satellite systems. Finally, detailed architectural trades for a distributed space based radar are presented to demonstrate the effectiveness of the methodology is thus identified as a valuable tool for space systems engineering, allowing qualitative and quantitative assessment of the impacts of system architecture, deployment strategy, schedule slip, market demographics and technical risk.}, keywords = {}, pubstate = {published}, tppubtype = {phdthesis} } A systematic analysis methodology for distributed satellite systems is developed that is generalizable and can be applied to any satellite mission in communications, sensing or navigation. The primary enabler is that almost all satellite applications involve the collection and dissemination of information and can thus be treated as modular information processing networks. This generalization alllows the adoption of the mathematics for information network flow, leading to a logical classification scheme for satellite systems. The benefits and issues that are characteristic of each system class are identified, in terms of their capability, performance and cost. The quantitative analysis methodology specifies measurable, unambiguous metrics for the cost, capability, performance, and adaptability. The Capabilities are characterized by for quanlity of service parameters that relate to the isolation, rate, integrity and availability of the information transferred between origin-destination pairs within a market. Performance is the probability of satisfying the user's requirements for these parameters. The Cost per Function metric is the average cost incurred to provide satisfactory service to a single user, and Adaptability metrics are sensitivity to indicators. Validation of the methodology is provided by a comprehensive quantitative analysis of the NAVSTAR Global Positioning System, in which the calculated capabilities agree with measured data to within 3%. The utility of the methodology for comparative analysis highlighted in a rigorous competitive assessment of there proposed broadband communication satellite systems. Finally, detailed architectural trades for a distributed space based radar are presented to demonstrate the effectiveness of the methodology is thus identified as a valuable tool for space systems engineering, allowing qualitative and quantitative assessment of the impacts of system architecture, deployment strategy, schedule slip, market demographics and technical risk. |
Stephenson, Robert L Comparative System Trades Between Structurally Connected and Separated Spacecraft Interferometers for the Terrestrial Planet Finder Mission By PhD Thesis 1998. BibTeX | Tags: @phdthesis{Stephenson1998a, title = {Comparative System Trades Between Structurally Connected and Separated Spacecraft Interferometers for the Terrestrial Planet Finder Mission By}, author = {Robert L Stephenson}, year = {1998}, date = {1998-01-01}, keywords = {}, pubstate = {published}, tppubtype = {phdthesis} } |
Yashko, Gregory Ion Micro-Propulsion and Cost Modeling for Satellite Clusters PhD Thesis 1998. BibTeX | Tags: @phdthesis{Yashko1998, title = {Ion Micro-Propulsion and Cost Modeling for Satellite Clusters}, author = {Gregory Yashko}, year = {1998}, date = {1998-01-01}, keywords = {}, pubstate = {published}, tppubtype = {phdthesis} } |
Crawley, Edward F Microdynamics and Thermal Snap Response of Deployable Space Structures By PhD Thesis 1998. BibTeX | Tags: @phdthesis{Crawley1998, title = {Microdynamics and Thermal Snap Response of Deployable Space Structures By}, author = {Edward F Crawley}, year = {1998}, date = {1998-01-01}, keywords = {}, pubstate = {published}, tppubtype = {phdthesis} } |
Miller, David W; Mallory, Gregory JW Control testbeds and flight demonstrations: Transitioning theory to application Inproceedings American Control Conference, 1998. Proceedings of the 1998, pp. 873–878, IEEE 1998. BibTeX | Tags: @inproceedings{miller1998control, title = {Control testbeds and flight demonstrations: Transitioning theory to application}, author = {David W Miller and Gregory JW Mallory}, year = {1998}, date = {1998-01-01}, booktitle = {American Control Conference, 1998. Proceedings of the 1998}, volume = {2}, pages = {873--878}, organization = {IEEE}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Kong, Edmund M Optimal Trajectories and Orbit Design for Separated Spacecraft Interferometry PhD Thesis 1998. @phdthesis{kongOptimalTrajectoriesOrbit1998, title = {Optimal Trajectories and Orbit Design for Separated Spacecraft Interferometry}, author = {Edmund M Kong}, year = {1998}, date = {1998-01-01}, number = {November}, keywords = {★}, pubstate = {published}, tppubtype = {phdthesis} } |
Miller, David W; Mallory, Gregory JW Control testbeds and flight demonstrations: Transitioning theory to application Inproceedings American Control Conference, 1998. Proceedings of the 1998, pp. 873–878, IEEE 1998. BibTeX | Tags: @inproceedings{miller1998controlb, title = {Control testbeds and flight demonstrations: Transitioning theory to application}, author = {David W Miller and Gregory JW Mallory}, year = {1998}, date = {1998-01-01}, booktitle = {American Control Conference, 1998. Proceedings of the 1998}, volume = {2}, pages = {873--878}, organization = {IEEE}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Lozano-tovar, Paulo Cesar Dynamic Models for Liquid Rocket Engines with Health Monitoring Application By PhD Thesis 1998. BibTeX | Tags: @phdthesis{lozano-tovarDynamicModelsLiquid1998, title = {Dynamic Models for Liquid Rocket Engines with Health Monitoring Application By}, author = {Paulo Cesar {Lozano-tovar}}, year = {1998}, date = {1998-01-01}, number = {1996}, keywords = {}, pubstate = {published}, tppubtype = {phdthesis} } |
1997 |
Glaese, Roger; Miller, David; Glaese, Roger; Miller, David A generalized impedance matching feedback law for structural-acoustic control Inproceedings 38th Structures, Structural Dynamics, and Materials Conference, pp. 1209, 1997. BibTeX | Tags: @inproceedings{glaese1997generalized, title = {A generalized impedance matching feedback law for structural-acoustic control}, author = {Roger Glaese and David Miller and Roger Glaese and David Miller}, year = {1997}, date = {1997-01-01}, booktitle = {38th Structures, Structural Dynamics, and Materials Conference}, pages = {1209}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Grocott, Simon CO; Miller, David W Robust control of the MMT adaptive secondary mirror Inproceedings Adaptive Optics and Applications, pp. 405–417, International Society for Optics and Photonics 1997. BibTeX | Tags: @inproceedings{grocott1997robust, title = {Robust control of the MMT adaptive secondary mirror}, author = {Simon CO Grocott and David W Miller}, year = {1997}, date = {1997-01-01}, booktitle = {Adaptive Optics and Applications}, volume = {3126}, pages = {405--417}, organization = {International Society for Optics and Photonics}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Grocott, Simon C O; How, Jonathan P; Miller, David W Experimental Comparison of Robust H Control Techniques for Uncertain Structural Systems Journal Article Journal of guidance, control, and dynamics, 20 (3), pp. 611–614, 1997. BibTeX | Tags: @article{o1997experimental, title = {Experimental Comparison of Robust H Control Techniques for Uncertain Structural Systems}, author = {Simon C O. Grocott and Jonathan P How and David W Miller}, year = {1997}, date = {1997-01-01}, journal = {Journal of guidance, control, and dynamics}, volume = {20}, number = {3}, pages = {611--614}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
How, Jonathan; Glaese, Roger; Grocott, Simon; Miller, David Finite element model-based robust controllers for the Middeck active control experiment (MACE) Journal Article IEEE Transactions on Control Systems Technology, 5 (1), pp. 110–118, 1997. BibTeX | Tags: @article{how1997finite, title = {Finite element model-based robust controllers for the Middeck active control experiment (MACE)}, author = {Jonathan How and Roger Glaese and Simon Grocott and David Miller}, year = {1997}, date = {1997-01-01}, journal = {IEEE Transactions on Control Systems Technology}, volume = {5}, number = {1}, pages = {110--118}, publisher = {IEEE}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Jilla, Cyrus D; Miller, David W Satellite design: past, present and future Journal Article International journal of small satellite engineering, 8 , 1997. BibTeX | Tags: @article{jilla1997satellite, title = {Satellite design: past, present and future}, author = {Cyrus D Jilla and David W Miller}, year = {1997}, date = {1997-01-01}, journal = {International journal of small satellite engineering}, volume = {8}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Tuttle, Timothy Douglas Creating Time-Optimal Control for Linear Systems PhD Thesis 1997. BibTeX | Tags: @phdthesis{Tools2007, title = {Creating Time-Optimal Control for Linear Systems}, author = {Timothy Douglas Tuttle}, year = {1997}, date = {1997-01-01}, keywords = {}, pubstate = {published}, tppubtype = {phdthesis} } |
Blaurock, Carl Modeling of Geometrically Nonlinear Flexible Structures for Control PhD Thesis 1997. @phdthesis{blaurockModelingGeometricallyNonlinear1997, title = {Modeling of Geometrically Nonlinear Flexible Structures for Control}, author = {Carl Blaurock}, year = {1997}, date = {1997-01-01}, keywords = {★}, pubstate = {published}, tppubtype = {phdthesis} } |
1996 |
Liu, Ketao; Jacques, Robert N; Miller, David W Frequency domain structural system identification by observability range space extraction Journal Article Journal of dynamic systems, measurement, and control, 118 (2), pp. 211–220, 1996. BibTeX | Tags: @article{liu1996frequency, title = {Frequency domain structural system identification by observability range space extraction}, author = {Ketao Liu and Robert N Jacques and David W Miller}, year = {1996}, date = {1996-01-01}, journal = {Journal of dynamic systems, measurement, and control}, volume = {118}, number = {2}, pages = {211--220}, publisher = {American Society of Mechanical Engineers}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Jacques, Robert N; Liu, Ketao; Miller, David W Identification of highly accurate low order state space models in the frequency domain Journal Article IFAC Proceedings Volumes, 29 (1), pp. 4249–4254, 1996. BibTeX | Tags: @article{jacques1996identification, title = {Identification of highly accurate low order state space models in the frequency domain}, author = {Robert N Jacques and Ketao Liu and David W Miller}, year = {1996}, date = {1996-01-01}, journal = {IFAC Proceedings Volumes}, volume = {29}, number = {1}, pages = {4249--4254}, publisher = {Elsevier}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Yung, Jeremy H Compensation Methodologies for Local Control Using Strain Actuators and Sensors PhD Thesis 1996. BibTeX | Tags: @phdthesis{Yung1996, title = {Compensation Methodologies for Local Control Using Strain Actuators and Sensors}, author = {Jeremy H Yung}, year = {1996}, date = {1996-01-01}, keywords = {}, pubstate = {published}, tppubtype = {phdthesis} } |
1995 |
Glaese, Roger; Miller, David Derivation of 0-g structural control models from analysis and 1-g experimentation Inproceedings 36th Structures, Structural Dynamics and Materials Conference, pp. 1121, 1995. BibTeX | Tags: @inproceedings{glaese1995derivation, title = {Derivation of 0-g structural control models from analysis and 1-g experimentation}, author = {Roger Glaese and David Miller}, year = {1995}, date = {1995-01-01}, booktitle = {36th Structures, Structural Dynamics and Materials Conference}, pages = {1121}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
How, Jonathan P; Miller, David W Development of on-orbit predictions for the middeck active control experiment Incollection Automatic Control in Aerospace 1994 (Aerospace Control'94), pp. 231–236, Elsevier, 1995. BibTeX | Tags: @incollection{how1995development, title = {Development of on-orbit predictions for the middeck active control experiment}, author = {Jonathan P How and David W Miller}, year = {1995}, date = {1995-01-01}, booktitle = {Automatic Control in Aerospace 1994 (Aerospace Control'94)}, pages = {231--236}, publisher = {Elsevier}, keywords = {}, pubstate = {published}, tppubtype = {incollection} } |
Sinha, Alok; Miller, David W Optimal sliding-mode control of a flexible spacecraft under stochastic disturbances Journal Article Journal of Guidance, Control, and Dynamics, 18 (3), pp. 486–492, 1995. BibTeX | Tags: @article{sinha1995optimalb, title = {Optimal sliding-mode control of a flexible spacecraft under stochastic disturbances}, author = {Alok Sinha and David W Miller}, year = {1995}, date = {1995-01-01}, journal = {Journal of Guidance, Control, and Dynamics}, volume = {18}, number = {3}, pages = {486--492}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Liu, Ketao; Miller, David W Time domain state space identification of structural systems Journal Article Journal of dynamic systems, measurement, and control, 117 (4), pp. 608–618, 1995. BibTeX | Tags: @article{liu1995time, title = {Time domain state space identification of structural systems}, author = {Ketao Liu and David W Miller}, year = {1995}, date = {1995-01-01}, journal = {Journal of dynamic systems, measurement, and control}, volume = {117}, number = {4}, pages = {608--618}, publisher = {American Society of Mechanical Engineers}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Sinha, Alok; Miller, David W Optimal sliding-mode control of a flexible spacecraft under stochastic disturbances Journal Article Journal of Guidance, Control, and Dynamics, 18 (3), pp. 486–492, 1995. BibTeX | Tags: @article{sinha1995optimal, title = {Optimal sliding-mode control of a flexible spacecraft under stochastic disturbances}, author = {Alok Sinha and David W Miller}, year = {1995}, date = {1995-01-01}, journal = {Journal of Guidance, Control, and Dynamics}, volume = {18}, number = {3}, pages = {486--492}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
1994 |
How, JP; Miller, DW Assessment of modelling and robust control techniques for future spacecraft: Middeck Active Control Experiment Journal Article ADVANCES IN THE ASTRONAUTICAL SCIENCES, 86 , pp. 395–395, 1994. BibTeX | Tags: @article{how1994assessment, title = {Assessment of modelling and robust control techniques for future spacecraft: Middeck Active Control Experiment}, author = {JP How and DW Miller}, year = {1994}, date = {1994-01-01}, journal = {ADVANCES IN THE ASTRONAUTICAL SCIENCES}, volume = {86}, pages = {395--395}, publisher = {UNIVELT INC}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Collins, SA; Miller, DW; Flotow, AH Von Distributed sensors as spatial filters in active structural control Journal Article Journal of Sound and Vibration, 173 (4), pp. 471–501, 1994. BibTeX | Tags: @article{collins1994distributed, title = {Distributed sensors as spatial filters in active structural control}, author = {SA Collins and DW Miller and AH Von Flotow}, year = {1994}, date = {1994-01-01}, journal = {Journal of Sound and Vibration}, volume = {173}, number = {4}, pages = {471--501}, publisher = {Elsevier}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Karlov, Valeri I; Miller, David W; Velde, Wallace Vander E; Crawley, Edward F Identification of model parameters and associated uncertainties for robust control design Journal Article Journal of guidance, control, and dynamics, 17 (3), pp. 495–504, 1994. BibTeX | Tags: @article{karlov1994identification, title = {Identification of model parameters and associated uncertainties for robust control design}, author = {Valeri I Karlov and David W Miller and Wallace E Vander Velde and Edward F Crawley}, year = {1994}, date = {1994-01-01}, journal = {Journal of guidance, control, and dynamics}, volume = {17}, number = {3}, pages = {495--504}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Grocott, Simon; How, Jonathan; Miller, David; MacMartin, Douglas; Liu, Ketao Robust control design and implementation on the middeck active control experiment Journal Article Journal of Guidance, Control, and Dynamics, 17 (6), pp. 1163–1170, 1994. BibTeX | Tags: @article{grocott1994robust, title = {Robust control design and implementation on the middeck active control experiment}, author = {Simon Grocott and Jonathan How and David Miller and Douglas MacMartin and Ketao Liu}, year = {1994}, date = {1994-01-01}, journal = {Journal of Guidance, Control, and Dynamics}, volume = {17}, number = {6}, pages = {1163--1170}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
1993 |
KARLOV, VALERI; GLAESE, ROGER; MILLER, DAVID; CRAWLEY, EDWARD Physical model-set identification for robust control of flexible structures Inproceedings Guidance, Navigation and Control Conference, pp. 3837, 1993. BibTeX | Tags: @inproceedings{karlov1993physical, title = {Physical model-set identification for robust control of flexible structures}, author = {VALERI KARLOV and ROGER GLAESE and DAVID MILLER and EDWARD CRAWLEY}, year = {1993}, date = {1993-01-01}, booktitle = {Guidance, Navigation and Control Conference}, pages = {3837}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Liu, Ketao; Miller, David W System identification by the ORSE technique with a finite number of data samples Inproceedings American Control Conference, 1993, pp. 2310–2314, IEEE 1993. BibTeX | Tags: @inproceedings{liu1993system, title = {System identification by the ORSE technique with a finite number of data samples}, author = {Ketao Liu and David W Miller}, year = {1993}, date = {1993-01-01}, booktitle = {American Control Conference, 1993}, pages = {2310--2314}, organization = {IEEE}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
1992 |
PINES, D; MILLER, D; FLOTOW, VON A Directional filters for sensing 1-D structural dynamics Inproceedings 33rd Structures, Structural Dynamics and Materials Conference, pp. 2333, 1992. BibTeX | Tags: @inproceedings{pines1992directional, title = {Directional filters for sensing 1-D structural dynamics}, author = {D PINES and D MILLER and A VON FLOTOW}, year = {1992}, date = {1992-01-01}, booktitle = {33rd Structures, Structural Dynamics and Materials Conference}, pages = {2333}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
MILLER, DAVID; Saarmaa, Erik; JACQUES, ROBERT Preliminary structural control results from the Middeck Active Control Experiment (MACE) Inproceedings Dynamics Specialists Conference, pp. 2138, 1992. BibTeX | Tags: @inproceedings{miller1992preliminary, title = {Preliminary structural control results from the Middeck Active Control Experiment (MACE)}, author = {DAVID MILLER and Erik Saarmaa and ROBERT JACQUES}, year = {1992}, date = {1992-01-01}, booktitle = {Dynamics Specialists Conference}, pages = {2138}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |