Faculty Directory

Space power and propulsion technologies, applications of plasmas, fusion power, advanced power conversion technologies

ENAE 457 / ENAE 457H / ENAE 662: Space Propulsion and Power

ENAE467 / ENAE 667: Advanced Space Propulsion and Power

ENES232: Thermodynamics

Journal Articles

• Bone, T.A. and R.J. Sedwick (2024). Bremsstrahlung Power Conversion for Fusion Power and Propulsion in Space. Acta Astronautica. 220, pp. 356-366 doi: 10.1016/j.actaastro.2024.04.040
• Carson, J.L. and R.J. Sedwick (2024). Direct fusion drive based on centrifugal mirror confinement. Acta Astron.. 219, pp. 438-448 doi: 10.1016/j.actaastro.2024.03.025
• Smith, E.S., J.B. Sloane and R.J. Sedwick (2020). Propulsion Performance of Repeated, Highly Focused Laser Ablation at a 45˚ Angle. AIAA J. of Propulsion and Power. doi: 10.2514/1.B38161
• Marcus, M.L. and R.J. Sedwick (2020). Evolutionary System Design Using a Generalized Component-Resource Model. Engineering Optimization. doi: 10.1080/0305215X.2020.1849173
• Saripalli, P. and R.J. Sedwick (2020). Nitrous Oxide Decomposition Using Inductively Heated Heat Exchangers. AIAA J. of Prop. and Power, 36(6), pp. 887-900. doi: 10.2514/1.B37793
• Sloane, J.B. and R.J. Sedwick (2020). Direct Force Measurement of Pulsed Laser Ablation of Asteroid Simulants, AIAA J. of Prop. and Power, 36(4), pp. 551-559. doi: 10.2514/1.B37566
• Halperin, A.H. and R.J. Sedwick (2020). Anchoring Thermal Drills for Icy Moon Stability and Mobility. Planetary and Space Science, Vol. 189, pp. 104967. doi: 10.1016/j.pss.2020.104967
• Halperin, A.H., R.J. Sedwick and A. Agarwal (2019). Thermal Picks for Anchoring on Icy Moons. Heliyon. 5(12), doi: 10.1016/j.heliyon.2019.e02959
• Saripalli, P. and R.J. Sedwick (2019).  1-D Numerical Model of Nitrous Oxide Decomposition using a Metal Foam.  AIAA J. of Propulsion and Power.  Online Jun 24, 2019.  Doi: 10.2514/1.B37324
• Sloane, J.B., E.S. Smith and R.J. Sedwick (2019). Time-of-flight mass spectrometry analysis of pulsed laser ablation of pyroxene. AIP Advances, 9, 025019. doi: 10.1063/1.5085461
• Faust, A.J. and R.J. Sedwick (2019).  Development of a helium collisional radiative model for a helicon thruster.  Plasma Research Express, 1 025001.  doi: 10.1088/2516-1067/ab120e
• Sanders, M.H. and R.J. Sedwick (2019).  Thermal Design and Performance of a Luminescent Solar Concentrator for Space Power Generation.  AIAA J. of Spacecraft and Rockets.  Online Aug 13, 2019. doi: 10.2514/1.A34361
• Saripalli, P. and R.J. Sedwick (2018).  Self-Sustained Nitrous Oxide Decomposition using a Pre-heated metal foam.  AIAA J. of Prop. and Power.  Accepted for Publication.
• Smith, E.S., J.B. Sloane and R.J. Sedwick (2018).  A Low Complexity Time-of-Flight Mass Spectrometer with Ion Size Measurement Based on Secondary Particle Yield.  Int. J. of Mass Spectrometry. 434, pp. 43-51. doi: 10.1016/j.ijms.2018.09.001
• Sloane, J.B., E.S. Smith and R.J. Sedwick (2018). Calibration of a mass spectrometer with an ionic liquid particle source", International Journal of Mass Spectrometry, 432, pp. 36-43. doi: 10.1016/j.ijms.2018.07.001
• Sedwick, R.J. and H. White (2018).  Spacedrives and Conservation Laws.  AIAA J. of Spacecraft and Rockets, 55(4), pp. 1034-1039. doi: 10.2514/1.A34116
• Masati, A. and R.J. Sedwick (2018).  Electrostatic forces acting on particle image velocimetry tracer particles in a plasma actuator flow”, J. of Applied Physics, 123(1), pp. 1-8.  doi: 10.1063/1.4998407
• Masati, A. and R.J. Sedwick (2018).  Correcting for particle size effects on plasma actuator particle image velocimetry measurements.  J. of Applied Physics, 123(1), pp. 1-10.  doi: 10.1063/1.5018182
• Marcus, M.L. and R.J. Sedwick (2017).  Low Earth Orbit Debris Removal Technology Assessment Using Genetic Algorithms.  AIAA J. of Spacecraft and Rockets, 54(5), pp. 1110-1126.  doi: 10.2514/1.A33671
• Petro, E. and R.J. Sedwick (2017).  Effects of Water-Vapor Propellant on Electrodeless Thruster Performance”, AIAA J. of Propulsion and Power, 33(6), pp. 1410-1417.  doi:  10.2514/1.B36389
• Petro, E. and R.J. Sedwick (2017).  Survey of Moderate-Power Electric Propulsion Systems”, AIAA J. of Sp. & Rockets, 54(3), pp. 529-541.  doi:  10.2514/1.A33647
• Chap, A.M., and R.J. Sedwick (2017).  Coulomb Collision Model for Use in Non-thermal Plasma Simulation.  APS Physical Review E, 95(6). pp. 1-12.  doi: 10.1103/PhysRevE.95.063209
• Bou-Balust, E., R.J. Sedwick, P. Fisher and E. Alarcon (2016). Multipath Relaying Effects in Multiple-Node Resonant Inductive Coupling Wireless Power Transfer.  Wireless Power Transfer, 3(2), pp. 83-92.  doi: 10.1017/wpt.2016.5
• Kumar, R. and R. Sedwick, “Despinning Orbital Debris before Docking using Laser Ablation”, AIAA Journal of Spacecraft and Rockets, 2015, Vol.52: 1129-1134, 10.2514/1.A33183
• Chap, A.M. and R.J. Sedwick, “One-Dimensional  Semi-analytical Model for Optimizing the Standing-Wave Direct Energy Converter (SWDEC)”, AIAA Journal of Propulsion and Power, 1-12, April, 2015, 10.2514/1.B35439.
• Alinger, D.J., A.K. Porter and R.J. Sedwick, “Optimization of Resonant Inductive Wireless Power Transfer Using Multilayer Flat Spiral Coils”, AIAA Journal of Spacecraft and Rockets, 2015, accessed March 18, 2015, doi: http://arc.aiaa.org/doi/abs/10.2514/1.A32901
• Porter, Allison K., Dustin J. Alinger, Raymond J. Sedwick, John Merk, Roedolph A. Opperman, Alexander Buck, Gregory Eslinger, Peter Fisher, David W. Miller, and Elisenda Bou, "Demonstration of Electromagnetic Formation Flight and Wireless Power Transfer," AIAA Journal of Spacecraft and Rockets, 2014, Vol.51: 1914-1923, doi: 10.2514/1.A32940
• Smith, E.S., R.J. Sedwick, J.F. Merk and J. McClellan, “Assessing the Potential of a Laser Ablation Propelled Tug to Remove Large Space Debris”, AIAA Journal of Spacecraft and Rockets, 50, 6 (2013), pp. 1268-1276.  doi: 10.2514/1.A32439
• Wilson, A.H., J.J Vitucci and R.J. Sedwick, “Flux tailoring of a permanent magnet field with a high temperature superconducting tube for a helicon plasma source”, IEEE Transactions on Applied Superconductivity, 22, 5, 2012.
• Sedwick, R.J., “A fully Analytic Treatment of Resonant Inductive Coupling in the Far Field”, Annals of Physics, 327, 2, pp. 407-420, 2011.
• Kwon, D.W., R.J. Sedwick, S. Lee, J.L. Ramirez-Riberos, “Electromagnetic Formation Flight Testbed Using Superconducting Coils”, AIAA J. of Spacecraft and Rockets, 48, 1, pp. 124-134, 2011
• Schweighart, S.A. and R.J. Sedwick, “Explicit Dipole Trajectory Solution for Electromagnetically Controlled Spacecraft Clusters”, AIAA J. of Guidance, Control, and Dynamics, 33, 4, pp. 1225-1235, 2010.
• Sedwick, R.J., “Long Range Inductive Power Transfer with Superconducting Oscillators”, Annals of Physics (2009), doi:10.1016/j.aop.2009.08.011
• Kwon, D.W. and R.J. Sedwick, “Cryogenic Heat Pipe for Cooling High Temperature Superconducting Coils”, AIAA J. of Thermophysics and Heat Transfer, 23, 4, pp. 732-739, 2009.
• Kwon, D.W. and R.J. Sedwick, “Cryogenic Heat Pipe for Cooling High Temperature Superconductors”, Cryogenics, 49, 9, pp. 514-523, 2009.
• Sedwick, R.J., Kerrebrock, J.L. and D.A. Zayas, “Magnetohydrodynamic Vortex Containment for Gas Core Nuclear Propulsion, Part I: Concept Overview”, AIAA Journal of Propulsion and Power, Vol 23, No. 1, Jan-Feb 2007.
• Sedwick, R.J. and D.A. Zayas, “Magnetohydrodynamic Vortex Containment, Part II: Equilibrium of Uranium Fluoride Fuel in Hydrogen Propellant”, AIAA Journal of Propulsion and Power, Vol 23, No. 1, Jan-Feb 2007.
• Sedwick, R.J. and D.A. Zayas, “Magnetohydrodynamic Vortex Containment, Part III: 1-D Axisymmetric Flow Model”, AIAA Journal of Propulsion and Power, Vol 23, No. 2, Mar-Apr 2007.
• Sedwick, R.J. and D.A. Zayas, “Magnetohydrodynamic Vortex Containment, Part IV: System Performance Assessment”, AIAA Journal of Propulsion and Power, Vol 23, No. 2, Mar-Apr 2007.
• Elias, L.M., D.W. Kwon, R.J. Sedwick and D.W. Miller, "Electromagnetic Formation Flight Dynamics including Reaction Wheel Gyroscopic Stiffening Effects" Journal of Guidance, Control, and Dynamics, Vol. 30, No. 2, Mar-Apr. 2007, pp. 499-511.
• Schweighart, S.A. and R.J. Sedwick, “Cross-Track Motion of Satellite Formations in the Presence of J2 Disturbances”, AIAA Journal of Guidance Control and Dynamics, Vol 28, No. 4, Jul-Aug 2005.
• McGuire, T.J. and R. J. Sedwick, “Improved Confinement in Inertial Electrostatic Confinement for Fusion Space Power Reactors”, AIAA Journal of Propulsion and Power, Vol 21, No. 4, Jul-Aug 2005.
• Kong, E.M.C, D.W. Kwon, S.A. Schweighart, L.M. Elias, R.J. Sedwick and D.W. Miller, “Electromagnetic Formation Flight for Multi-Satellite Arrays”, AIAA Journal of Spacecraft and Rockets, Vol 41, No. 4, Jul-Aug 2004.
• Schweighart, S.A. and R.J. Sedwick, “High-Fidelity Linearized J2 Model for Satellite Formation Flying”, Journal of Guidance Control and Dynamics, Vol 25 No. 6, Nov-Dec, 2002.
• Enright, J.P., R.J. Sedwick and D.W. Miller, “High-Fidelity Simulation for Spacecraft Autonomy Development”, Canadian Aeronautics and Space Journal, Vol. 48, No. 1, March 2002.
• Jilla C.D, D.W. Miller and R.J.Sedwick, "Application of Multidisciplinary Design Optimization Techniques to Distributed Satellite Systems", Journal of Spacecraft and Rockets, Vol. 37, No. 4, 2000.
• Sedwick, R.J., D.W. Miller and E.M.C. Kong (1999).  Mitigation of Differential Perturbations in Clusters of Formation Flying Satellites.  J. of Astronautical Sciences, 47(3-4), pp. 309-331.  doi: pre-doi introduction
• Kong, E.M.C., D.W. Miller, and R.J. Sedwick (1999). Exploiting Orbital Dynamics for Aperture Synthesis Using Distributed Satellite Systems: Applications to a Visible Earth Imager System.  J. of Astronautical Sciences, 47(1-2), pp. 53-75.  doi: pre-doi introduction

Conference Proceedings

• Sedwick, R.J., A.M. Chap and N.M. Schilling (2018, January). Continuous Electrode Inertial Electrostatic Confinement Fusion.  AAS 18-037. AAS Guidance and Control Conference, Breckenridge, CO.
• Petro, E. and R.J. Sedwick (2017, October). Ion Cyclotron Heating in an Electrodeless Water Vapor Thruster. IEPC 2017-468. 2017 International Electric Propulsion Conference, Atlanta, GA.
• Sedwick, R.J., C.P. Cadou, and K. Yu (2017, July). Propulsion Curriculum and Research in the Aerospace Engineering Department at the University of Maryland. AIAA2017-4881. 53rd AIAA/SAE/ASEE JPC.  doi: 10.2514/6.2017-4881
• Chap, A. M., and R.J. Sedwick (2016, July). Inertial Electrostatic Confinement Fusion Simulation and a Statistical Treatment of Coulomb Collisions. AIAA 2016-4776. 52nd AIAA/SAE/ASEE JPC, Salt Lake City, UT, doi: 10.2514/6.2016-4776
• Chap, A.M. and R.J. Sedwick, “Simulation of an Inertial Electrostatic Confinement Device Using a Hermite N-body Individual Time-step Scheme”, AIAA 2015-3860, 51st AIAA/SAE/ASEE Joint Propulsion Conference, 2015, 10.2514/6.2015-3860.
• Vitucci, J.J., Z.A. Brown, and R.J. Sedwick (2015, July). Development of a Superconducting Magnet System for a Helicon Plasma Thruster.  IEPC-2015-293, Joint Conf. of 30th ISTS, 34th IEPC, and 6th NSAT, Kobe-Hyogo, Japan.
• Bou, E., E. Alarcon, J. Gutierrez and R.J. Sedwick (2014, June) Advances in non-radiative resonant inductive coupling wireless Power Transfer: A comparison of alternative circuit and system models driven by emergent applications. ISCAS2014. doi: 10.1109/ISCAS.2014.6865565
• Vitucci, J.J. and R.J. Sedwick, “Improved Superconducting Magnet System to Reduce Upstream Boundary Power Losses in a Helicon Plasma Thruster”, AIAA 2014-3405, 50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, 2014, 10.2514/6.2014-3405.
• Chap, A.M. and R.J. Sedwick, “A Hybrid Particle-in-cell Simulation for a Multiple Grid Magnetic Core Inertial Electrostatic Confinement Device”, AIAA-2014-3516, 50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, 2014, 10.2514/6.2014-3516.
• Porter, A.K., D. Alinger, R.J. Sedwick, et al., “Dual-purpose Resonant Actuators for Electromagnetic Formation Flight and Wireless Power Transfer”, AIAA 2014-0449, AIAA Guidance, Navigation, and Control Conference, 2014, 10.2514/6.2014-0449.
• Faust, A.J. and R.J. Sedwick, “Performance of a Helicon Thruster using Helium, Argon, and Water Vapor”, AIAA 2014-0141, 52nd Aerospace Sciences Meeting, 2014, 10.2514/6.2014-0141.
• Saripalli, P.S. and R.J. Sedwick, "Development of a Green Propellant Station-Keeping Thruster using a Dielectric Barrier Discharge," AIAA-2013-3882, AIAA Joint Propulsion Conference & Exhibit, San Jose, CA, Jul 14-17, 2013.
• Vitucci, J. and R. Sedwick, "Development of Superconducting Magnets for a Helicon Plasma Thruster", AIAA 2013-3829, 49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, San Jose, CA, Jul 14-17, 2013
• Faust, A., Sedwick, R., "Comparison of Plasma Diagnostics for an Argon and Helium Gas Helicon Thruster," AIAA-2013-3828, 49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, San Jose, CA, July 14-17, 2013.
• Vitucci, J. and R. Sedwick, “Development of a Superconducting Helicon Thruster”, 48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2012, 10.2514/6.2012-3866.
• Faust, A.J., R.J. Sedwick, " Comparison of Plasma Diagnostics of a Helicon Thruster using Argon and Water Vapor with Helium," IEPC-2013-408, 33rd International Electric Propulsion Conference, George Washington University, Washington D. C., Oct. 6-10, 2013
• Faust, A., Sedwick, R., "Performance of a Helicon Thruster using Helium, Argon, and Water Vapor," AIAA-2014-0141, SciTech 2014, 13-17 January 2014, National Harbor, MD.
• Korkut, B., J.A. Young, D.A. Levin, and R.J. Sedwick,, “Comparison of Ion Thruster Plumes Generated in the SPPL-1 Facility with DSMC Simulations using AMR”, AIAA-2014-0139, SciTech 2014, 13-17 January 2014, National Harbor, MD.
• Masati, A., Sedwick, R. J., “Parametric Study of Particle Size for Plasma Actuator PIV Measurements,” AIAA 2014-0147, SciTech 2014, 13-17 January 2014, National Harber, MD.
• Porter, A.K., D.J. Alinger, R.J. Sedwick, J. Merk, R.A. Opperman, A. Buck, G. Eslinger, P. Fisher, D.W., Miller, E. Bou, “Dual-purpose Resonate Actuators for Electromagnetic Formation Flight and Wireless Power Transfer,” AIAA 2014-0449, SciTech 2014, 13-17 January 2014, National Harber, MD.
• Young, J., R.J. Sedwick, S. Dumpala, K. Rajan, “High Energy Plume Impingement on Spacecraft Systems”, AIAA-2014-1032, AIAA SciTech 2014, 13-17 January 2014, National Harbor, MD
• Bou, E., R. Sedwick and E. Alarcon, “Maximizing Efficiency through Impedance Matching from a Circuit-Centric Model of Non-Radiative Resonant Wireless Power Transfer”, IEEE International Symposium on Circuits and Systems, 2013, ISCAS 2013, May 2013, Beijing, China
• Bou, E., E. Alarcon and R. Sedwick, “Effects of non-resonant interferent objects in Impedance Matched Systems”, at the special session “Circuit Aspects of Non-Radiative Wireless Power Transfer”, PIERS Progress In Electromagnetics Research Symposium, Moscow, Russia, 19-23, August, 2012.
• Bou, E., E. Alarcon, R. Sedwick and P. Fisher, “Interference analysis on Resonant Inductive Coupled Wireless Power Transfer links”, IEEE International Symposium on Circuits and Systems, 2013, ISCAS 2013, May 2013, Beijing, China
• Kwon, D.W., R.J. Sedwick and A. Sakaguchi, “Micro-Electromagnetic Formation Flight of Satellite Systems”, AIAA-2010-8725, AIAA Space 2010 Conference, Anaheim, CA, 2010.
• Sedwick, R.J., “Magnetic Core Multi-Grid Inertial Electrostatic Confinement Fusion”, AIAA-2010-6605, 8th International Energy Conversion Engineering Conference, Nashville, TN, 2010
• Sedwick, R.J. and M.F. DeMaio, “Superconducting Helicon Thruster”, AIAA-2010-621, 48th AIAA Aerospace Sciences Meeting, Orlando, FL, 2010.
• Kwon, D.W. and R.J. Sedwick, “Cryogenic Thermal Design of Electromagnetic Formation Flight Satellites”, IAC-08-C4.3, 59th IAC Congress, Glasgow, Scotland, Sep 29-Oct 3, 2008.
• Eagle, W., I. Boyd, S. Trepp and R.J. Sedwick, “The Erosion Prediction impact on Current Hall Thruster Model Development”, AIAA-2008-5087, AIAA/ASME/SAE/ASEE JPC, 44th Annual meeting, Hartford, CT, 2008.
• McGuire, T.J. and R.J. Sedwick, “Numerical Predictions of Enhanced Ion Confinement in a Multi-grid IEC Device”, AIAA-2008-4675, AIAA/ASME/SAE/ASEE JPC, 44th Annual meeting, Hartford, CT, 2008
• Dietrich, C.C, L.J. Eurice and R.J. Sedwick, “Experimental Verification of Enhanced Confinement in a Multi-grid IEC Device”, AIAA-2008-4675, AIAA/ASME/SAE/ASEE JPC, 44th Annual meeting, Hartford, CT, 2008.
• Sedwick, R.J. and S.A. Schweighart, “Electromagnetic Formation Flight”, AAS 03-005, 26th Rocky Mt. Guidance and Control Conference, Breckenridge, CO., Feb 5-9, 2003.
• Dietrich, C.C. and R.J. Sedwick, “A Magnetic Nozzle and Diverter Electrode to Improve Penning Fusion Efficiency”, Workshop on Non-Neutral Plasmas, Santa Fe, NM, July 7-11, 2003.
• McGuire, T.J., and R.J. Sedwick, “Confinement Limitations in Gridded Inertial Electrostatic Confinement Fusion Devices”, AIAA 2003-4829, AIAA/ASME/SAE/ASEE JPC, 39th Annual meeting, Huntsville, AL, 2003.
• Dietrich, C.C. and R.J. Sedwick, “Efficiency Improvements for IEC Fusion in a Penning Trap by Electron Re-Circulation”, ”, AIAA 2003-4827, AIAA/ASME/SAE/ASEE JPC, 39th Annual meeting, Huntsville, AL, 2003.
• Miller, D.W., R.J. Sedwick, E.M.C. Kong and Schweighart, S.A., “Electromagnetic Formation Flight for Sparse Aperture Telescopes”, IEEE 02-428, IEEE 2002 Aerospace Conference, Big Sky, MT, March 2002.
• Sedwick, R.J. and S.A. Schweighart, “Propellantless Spin-Up and Reorientation of Tethered or Electromagnetically Coupled Spacecraft”, SPIE 4849-26, SPIE Highly Innovative Space Telescope Concepts Conference, Waikoloa, HI, Aug 22-28, 2002.
• Sedwick, R.J. and D.W. Miller, “System Level Design Trades for the Submillimeter Probe of the Evolution of Cosmic Structure (SPECS)”, SPIE 4849-27, SPIE Highly Innovative Space Telescope Concepts Conference, Waikoloa, HI, Aug 22-28, 2002.
• Enright, J.P., R.J. Sedwick and D.W. Miller, “An Evolutionary Approach to Engineering Spacecraft Flight Software”, IASTED Applied Informatics 2001: Software Symposium, Feb. 19-22, 2001, Innsbruck, Austria.
• Marais, K. and R.J. Sedwick, "Space Based GMTI Using Scanned Pattern Interferometric Radar," IEEE 2001 Aerospace Conf., Big Sky, MT, March 2001.
• Schweighart, S.A. and R.J. Sedwick, "A Perturbative Analysis of Geopotential Disturbances for Satellite Cluster Formation Flying," IEEE 2001 Aerospace Conference, Big Sky, MT, March 2001.
• Enright, J., R.J. Sedwick and D.W. Miller, “An Enabling Development Environment for Spacecraft Autonomy”, AAAI Spring Symposium: Robust Autonomy, March 26-28, 2001, Stanford, CA.
• Reichbach, J.G., R.J. Sedwick and M. Martinez-Sanchez, "Micropropulsion System Selection for Precision Formation Flying Satellites," AIAA 01-3646, AIAA/ASME/ SAE/ASEE JPC, 37th Annual meeting, Salt Lake City, Utah, Jul 2001.
• McGuire, T.J., and R.J. Sedwick, "Aero-Assisted Orbital Transfer Vehicles Utilizing Atmosphere Ingestion", AIAA 01-0840, AIAA Aerospace Sciences Conference, 39th Annual meeting, Reno, NV, January 2001.
• Miller, D.W., R.J. Sedwick, K. Hartman, “Evolutionary Growth of Mission Capability Using Distributed Satellite Sparse Apertures: Application to NASA’s Soil Moisture Mission (EX-4)", 2001.
• Marais, K. and R.J. Sedwick, “Cluster Design for Scanned Pattern Interferometric Radar”, AIAA 01-4654, AIAA Space 2001 Conference and Exhibit, Albuquerque, NM, August 28-30, 2001.
• Schweighart, S.A. and R.J. Sedwick, “Development and Analysis of a High Fidelity Linearized J2 Model for Satellite Formation Flying”, AIAA 01-4744, AIAA Space 2001 - Conference and Exposition, Albuquerque, NM, Aug. 28-30, 2001.
• Sedwick, R.J., T.L. Hacker, K. Marais, "Performance Analysis for an Interferometric Space-Based GMTI Radar System", IEEE 2000 International Radar Conference, Alexandria, VA; May 7-12, 2000.
• Enright, J.P., R.J. Sedwick and D.W. Miller, “High-Fidelity Simulation for Spacecraft Autonomy Development”, Astro-2000 11th CASJ Conference on Astronautics, Nov. 6-9, 2000, Ottawa, Ontario.
• Kong, E.M.C., D.W. Miller, and R.J. Sedwick, "Exploiting Orbital Dynamics for Aperture Synthesis Using Distributed Satellite Systems: Applications to a Visible Earth Imager System", AAS/AIAA Space Flight Mechanics Mtg, AAS 99-122, Feb 1999.
• Kong, E.M.C., D.W. Miller, and R.J. Sedwick, "Exploiting Orbital Dynamics for Stellar Separated Spacecraft Interferometry," ACC99-I014-04, American Control Conference, June 1999.
• Sedwick, R.J., T.L. Hacker and D.W. Miller, "Optimum Aperture Placement for a Space-Based Radar System Using Separated Spacecraft Interferometry", AIAA 99-4271, AIAA Guidance, Navigation, and Control Conference, Portland, OR; August 9-11, 1999.
• Hacker, T.L. and R.J. Sedwick, "Space-Based GMTI Radar Using Separated Spacecraft Interferometry", AIAA 99-4634, AIAA Space Technology Conference, Albuquerque, NM; Sept 28-30, 1999.
• Kong, E.M.C., D.W. Miller, and R.J. Sedwick, "Trajectory Design for a Visible Geosynchronous Earth Imager", AIAA-99-4633, AIAA Space Technology Conference, Albuquerque, NM, Sept 28-30, 1999.
• Jilla, C.D., R.J. Sedwick, and D.W. Miller, "Application of Multidisciplinary Design Optimization Techniques to Distributed Satellite Systems", AIAA-99-4632, AIAA Space Technology Conference, Albuquerque, NM, September 28-30, 1999.
• Enright, J.P., R.J. Sedwick, and D.W. Miller, "Information Architecture Analysis and Optimization for Space-Based Distributed Radar", AIAA 99-4551, AIAA Space Technology Conference, Albuquerque, NM, September 28-30, 1999.
• Sedwick, R.J., D.W. Miller and E.M.C. Kong, "Mitigation of Differential Perturbations in Clusters of Formation Flying Satellites", AAS 99-124, AAS Space Flight Mechanics Conference, Breckenridge, CO, February 1998.
• Sedwick, R.J. and J.L. Kerrebrock, "Developments in Gas Core Nuclear Propulsion Using MHD Driven Vortex Containment,” AIAA 98-3888, AIAA/ASME/SAE/ASEE JPC, 34th Annual meeting, Cleveland, OH, 1998.
• Sedwick, R.J. and J.L. Kerrebrock "Radiator Free Space Power Conversion," AIAA 98-3889, AIAA/ ASME/SAE/ASEE JPC, 34th Annual meeting, Cleveland, OH, 1998.
• Sedwick, R.J., E.M.C Kong and D.W. Miller, "Exploiting Orbital Dynamics and Micropropulsion for Aperture Synthesis Using Distributed Satellite Systems: Applications to TechSat 21," AIAA-98-5289, AIAA Defense and Civil Space Program Conference, Huntsville, AL, Oct 28-30, 1998.
• Sedwick, R.J. and J.L. Kerrebrock, "Radiative Heat Transfer and Ionization In MHD Driven Vortices for a GCNR, " AIAA 97-0792, AIAA Aerospace Sciences Conference, 35th Annual meeting, Reno, NV, 1997.
• Sedwick, R.J. and J.L. Kerrebrock, "MHD Enhanced Vortex Containment Concept for a Gas Core Nuclear Rocket, " AIAA 96-0718, AIAA Aerospace Sciences Conference, 34th Annual meeting, Reno, NV, 1996.