Research Publications
Published/submitted 174 papers (63 published/accepted in peer-reviewed journals, 10 submitted to peer-reviewed journals, 101 reviewed conference papers), 5 books (4 published, 1 accepted for publication), and 2 patents.
Articles Published or Accepted in Refereed Journals
1. Pan, Y., Kumar, K. D., and Liu, G., “Extremum Seeking Control with Second-Order Sliding Mode,” SIAM Journal on Control and Optimization, 2012 (Log No. SICON 077848R; in press).

2. Zou, A., and Kumar, K. D.,“Quaternion-Based Distributed Output Feedback Attitude Coordination Control for Spacecraft Formation Flying,” AIAA Journal of Guidance, Control and Dynamics, 2012. (Log No. G10585; in press).

3. Rahimi, A., Kumar, K. D., and Alighanbari, H., “Particle Swarm Optimization Applied to Spacecraft Re-entry Trajectory,” AIAA Journal of Guidance, Control and Dynamics, 2011. (Log No. G10591, in press).

4. Zou, A, and Kumar, K. D., “Neural Network-Based Distributed Attitude Coordination Control for Spacecraft Formation Flying with Input Saturation,” IEEE Transactions on Neural Networks and Learning Systems, 2012 (Log No. TNNLS-2012-B-0064.R1, in press).

5. Zou, A., and Kumar, K., D., “Robust Attitude Coordination Control for Spacecraft Formation Flying Under Actuator Failures,” AIAA Journal of Guidance, Control and Dynamics, 2012 (Log No. G10433, in press).
2. Li, J. and Kumar, K. D., “Decentralized Fault Tolerant Control for Satellite Attitude Synchronization,” IEEE Transactions on Fuzzy Systems, Vol. 20, No. 3, 2012, pp. 1-15.

6. Varma, S., and Kumar, K. D., “Multiple Satellite Formation Flying using Differential Aerodynamic Drag,” AIAA Journal of Spacecraft and Rockets, 2011. (Log No. A30911, in press).

7. Li, J., Pan, Y., and Kumar, K. D., “Design of Asymptotic Second-order Sliding Mode Control for Satellite Formation Flying,” AIAA Journal of Guidance, Control and Dynamics, Vol. 35, No. 1, 2012, pp. 309-316.

8. Liu, X., and Kumar, K. D., “Network-based tracking control of spacecraft formation flying with communication delays,” IEEE Transactions on Aerospace and Electronic Systems, 2011. (Log No. TAES-200900445, in press).

9. Zou, A., Kumar, K. D., and Hou, Z. G., “Attitude Coordination Control for a Group of Spacecraft Without Velocity Measurements,” IEEE Transactions on Control Systems Technology, 2011. (Log No. TCST-2011-0093, in press)

10. Zou, A. M., and Kumar, K. D., “Distributed Attitude Coordination Control for Spacecraft Formation Flying,” IEEE Transactions on Aerospace and Electronic Systems, 2011. (Log No. TAES-201000142, in press).

11. Zou, A., Kumar, K. D., and Hou, Z. G., “Distributed Consensus Control for Multi-Agent Systems using Terminal Sliding Mode and Chebyshev Neural Networks,” International Journal of Robust and Nonlinear Control, 2011. (Log No. RNC-11-0005; in press).

12. Liu, X., and Kumar, K. D., “Input-to-state Stability of Model-based Spacecraft Formation Control Systems with Communication Constraints,”Acta Astronautica,Vol.68,Nos.11-12,2011,pp.1847-1859.

13. Zou, A., Kumar, K. D., Hou, Z.-G., and Liu, X., “Finite-time Attitude Tracking Control for Spacecraft using Terminal Sliding Mode and Chebyshev Neural Networks,” IEEE Transactions on System, Man and Cybernetics- Part B, Vol. 41, No. 2, 2011, pp. 1242-1259.

14. Pan, Y., Kumar, K. D., and Liu, G., “Reduced-order Design of High-order Sliding Mode Control System,” International Journal of Robust and Nonlinear Control, online Dec. 2010, doi:10.1002/rr4c.1678.

15. Godard, and Kumar, K., D., “Robust Attitude Stabilization of Spacecraft Subject to Actuator Failures,” Acta Astronautica, Vol. 68, Nos. 7-8, 2011, pp. 1242-1259.

16. Li, J., and Kumar, K. D., “Fault Tolerant Attitude Synchronization Control during Spacecraft Formation Flying,” ASCE J. of Aero. Eng., Vol. 24, No. 3, 2011, pp. 361-372.

17. Zou, A. M., and Kumar, K. D., “Adaptive Output Feedback Control of Spacecraft Formation Flying Using Chebyshev Neural Networks,” ASCE J. of Aero. Eng., Vol. 24, No. 3, 2011, pp. 251-263.

18. Zou, A. M., and Kumar, K. D., “Adaptive Fuzzy Fault-Tolerant Attitude Control of Spacecraft,” Control Engineering Practice, Vol. 19, No. 1, 2011, pp. 10-21.

19. Das, S., Sinha, M., Kumar, K. D., and Misra, A. K., “Reconfigurable Magnetic Attitude Control of Earth Pointing Satellite,” Journal of Aerospace Engineering, Part G, Proceedings of the Institution of Mechanical Engineers, Vol. 224, No. 12, 2010, pp. 1309-1326.

20. Zou, A. M., and Kumar, K. D., “Quaternion-Based Adaptive Output Feedback Attitude Control of Spacecraft Using Chebyshev Neural Networks,’’ IEEE Transactions on Neural Networks, Vol. 21, No. 9, 2010, pp. 1457-1471.

21. Shahid, K. and Kumar, K. D., “Spacecraft Formation Control at the Sun-Earth L2 Libration Point using Solar Radiation Pressure,” J. of Spacecraft and Rockets, Vol. 47, No. 4, 2010, pp. 614-626.

22. Godard, Kumar, K. D., and Tan, B. “Nonlinear Optimal Control of Tethered Satellite Systems Using Tether Offset in the Presence of Tether Failure,” Acta Astronautica, Vol.66, Nos. 9-10, 2010, pp. 1434-1448.

23. Godard, and Kumar, K., D., “Fault Tolerant Reconfigurable Satellite Formations Using Adaptive Variable Structure Techniques,” J. of Guidance, Control, and Dyn.,Vol. 33, No. 3, 2010, pp. 969-984.

24. Varma, S., and Kumar, K. D., “Fault Tolerant Satellite Attitude Control Using Solar Radiation Pressure based on Adaptive Sliding Mode,” Acta Astronautica, Vol. 66, Nos. 3-4, 2010, pp. 486-500.

25. Zou, A. M., and Kumar, K. D., “Adaptive Attitude Control of Spacecraft Without Velocity Measurements using Chebyshev Neural Network,”Acta Astronautica, Vol. 66, Nos. 5-6, 2010, pp. 769-779.

26. Pan, Y., Kumar, K. D., Liu, G., and Furuta, K., “Design of Variable Structure Control System with Nonlinear Time-Varying Sliding Sector,” IEEE Transactions on Automatic Control, Vol. 54, No. 8, 2009, pp. 1981-1986.

27. Shahid, K., and Kumar, K. D., “Satellite Formation Flying Using Variable Structure Model Reference Adaptive Control,” Journal of Aerospace Engineering, Part G, Proceedings of the Institution of Mechanical Engineers, Vol. 223, No. G3, 2009, pp. 271-283.

28. Kumar, K. D., “Satellite Attitude Stabilization Using Fluid Rings,” Acta Mechanica, Vol. 208, Nos. 1-2, 2009, pp. 117-131.

29. Patel, T. R., Kumar, K. D., and Behdinan, K., “Variable Structure Control for Satellite Attitude Stabilization in Elliptic Orbits Using Solar Radiation Pressure,” Acta Astronautica, Vol. 64, Nos. 2-3, 2009, pp. 359-373.

30. Kumar, K. D., Tahk, M. J., and Bang, H. C., “Satellite Attitude Stabilization Using Solar Radiation Pressure and Magnetic Torquer,” Control Engineering Practice, Vol. 17, No. 2, 2009, pp. 267-279.

31. Kumar, K. D., and Patel, T., “Dynamics and Control of Multi-Connected Satellites aligned along Local Horizontal,” Acta Mechanica, Vol. 204, 2009, pp. 175-191.

32. Godard, Kumar, K. D., and Tan, B. “Fault Tolerant Stabilization of a Tethered Satellite System Using Offset Control,” Journal of Spacecraft and Rockets, Vol. 45, No. 5, 2008, pp. 1070-1084.

33. Patel, T., Kumar, K. D., and Behdinan, K., “Satellite Attitude Control Using Solar Radiation Pressure based on Sliding Mode Control,” Journal of Aerospace Engineering, Part G, Proceedings of the Institution of Mechanical Engineers, Vol. 222, No. G3, 2008, pp. 379-392.

34. Alger, M. W. R., and Kumar, K. D., “A Design and Development of Pico and Femto-Satellites,” International Journal of Manufacturing Research, Vol. 3, No. 1, 2008, pp. 48-79.

35. Kuo, Y. L., Kumar, K. D., Behdinan, K., and Fawaz, Z., “Open-loop Optimal Attitude Control of Miniature Spacecraft Using MEMS Actuators,” IEEE Transactions on Aerospace and Electronic Systems, Vol. 44, No. 4, 2008, pp. 1381-1390.

36. Kumar, K. D., “Attitude Dynamics and Control of Spacecraft Orbiting Asteroids,” Acta Mechanica, Vol. 198, Nos. 1-2, 2008, pp. 99-118.

37. Kumar, K. D., Bang, H. C., and Tahk, M. J., “Satellite Formation Flying Using Along Track Thrust,” Acta Astronautica, Vol. 61, Nos. 7-8, 2007, pp. 553-564.

38. Kumar, K. D., “A Review on Dynamics and Control of Non-Electrodynamic Tethered Satellite Systems,” AIAA Journal of Spacecraft and Rockets, Vol. 43, No. 4, 2006, pp. 705-720.

39. Kumar, K. D., Bang, H. C., and Tahk, M. J., “New Attitude Control Approach for Satellites in Elliptic Orbits Using Solar Radiation Pressure,” Acta Astronautica, Vol. 59, No. 6, 2006, pp. 462-473.

40. Kumar, K. D., and Kumar, K., “Line-of-Sight Pointing for Satellites in High Altitude Inclined Orbits,” IEEE Transactions on Aerospace and Electronic Systems, Vol. 41, No. 3, 2005. pp. 819-829.

41. Kumar, K. D., and Yasaka, T., “Dynamics of Rotating Linear Array Tethered Satellite System,” Journal of Spacecraft and Rockets, Vol. 42, No. 2, 2005, pp. 373-378.

42. Kumar, K. D., Yasaka, T., and Sasaki, T., “Orbit transfer of Service Vehicle/ Payload Transfer through Tether Retrieval,” Acta Astronautica, Vol. 54, No. 9, 2004, pp. 687-698.

43. Kumar, K. D., and Khan, B. K., “Minimizing Tool Changeovers in Three Parallel and Identical Machining Centres,” Journal of Advanced Manufacturing Systems, Vol. 3, No. 2, 2004, pp. 169-181.

44. Kumar, K. D., and Yasaka, T., “Rotating Formation Flying of Three Satellites Using Tethers,” AIAA Journal of Spacecraft and Rockets, Vol. 41, No. 6, 2004, pp. 973-985.

45. Kumar, K. D., “Flight Control System Design Using Neural Networks and Genetic Algorithms,” International Journal Control and Intelligent Systems, Vol. 31, No. 2, 2003, pp. 101-112.

46. Kasana, H. S., and Kumar, K. D., “Grouping Algorithm for Goal Programming Problems,” Asia-Pacific J. of Operational Research, Vol. 20, 2003, pp. 191-220.

47. Kumar, K. D., “Payload Deployment using Reusable Launch Vehicle through Tether,” AIAA Journal of Spacecraft and Rockets, Vol. 38, No. 2, 2001, pp. 291-294; Errata Vol. 39, No. 4, 2002, page 644.

48. Kumar, K. D., and Yasaka, T., “Satellite Attitude Stabilization through Kite-like Tether Configuration,” AIAA Journal of Spacecraft and Rockets, Vol. 39, No. 5, 2002, pp. 755-760.

49. Kumar, K., and Kumar, K. D., “Feasibility of Using Satellites In Non-Equatorial 24-Hour Circular Orbits for Communications,” Acta Astronautica, Vol. 48, No. 5-12, 2001, pp. 589-596.

50. Kumar, K. D., and Kumar, K., “Attitude Maneuver of Dual Tethered Satellite Platforms through Tether Offset Change,” AIAA Journal of Spacecraft and Rockets, Vol. 38, No. 2, 2001, pp. 237-242.

51. Khan, B. K, Gupta, B. D., Sen Gupta, D. K., and Kumar, K. D., “A Generalized Procedure for Minimizing Tool Changeovers of Two Parallel and Identical CNC Machining Centres,” International Journal of Production Planning and Control (Taylor & Francis), Vol. 11, No. 1, 2000, pp. 62-72.

52. Kasana, H. S., and Kumar, K. D., “An Efficient Algorithm for Multi-Objective Transportation Problems,” Asia-Pacific J. of Operational Research, Vol. 17, 2000, pp. 27-40.

53. Kumar, K., and Kumar, K. D., “Variable Attitude Compensation through Tether for Comsats in ‘Drifting’/Inclined Geosynchronous Orbits,” AIAA Journal of Spacecraft and Rockets, Vol. 37, No. 2, 2000, pp. 290-293.

54. Kumar, K. D., and Kumar, K., “Pitch and Roll Attitude Maneuver of Twin Satellite System through Very Short Tethers,” AIAA Journal of Spacecraft and Rockets, Vol. 37, No. 2, 2000, pp. 287-290.

55. Kumar, K., and Kumar, K. D., “Tethered Dual Spacecraft Configuration: A Simple Solution to Attitude Control Problems,” Aerospace Science and Technology, Vol. 4, No. 7, 2000, pp. 495-506.

56. Kumar, K., and Kumar, K. D., “Line-of-Sight Pointing Stability for Drifting Satellites,” IEEE Transactions on Aerospace and Electronic Systems, Vol. 35. No. 2, April, 1999, pp.504-510.

57. Kumar, K., and Kumar, K. D., “Variable Attitude Maneuver through Tether for a Drifting Twin Satellite System in Elliptic Orbits,” Acta Astronautica, Vol. 45, No. 3, 1999, pp. 135-142.

58. Kumar, K. D., and Kumar, K., “Satellite Pitch and Roll Maneuvers through Very Short Tethers,” Acta Astronautica, Vol. 44, No. 5, 1999, pp. 257-265.

59. Kumar, K., and Kumar, K. D., “Auto-Attitude Stabilization of A Twin Satellite System through Very Short Tethers,” AIAA Journal of Spacecraft and Rockets, Vol. 35, No. 2, 1998, pp. 199-204.

60. Kumar, K., and Kumar, K. D., “Open-Loop Satellite Librational Control in Elliptic Orbits through Tether,” Acta Astronautica, Vol. 41, No. 1, 1997, pp. 15-21.

61. Kumar, K., and Kumar, K. D., “Satellite Attitude Maneuver through Tether: A Novel Concept,” Paper No. IAF-96-A.5.02, presented in 47th International Astronautical Federation Congress, Beijing, China, October 7-11, 1996; also in Acta Astronautica, Vol. 40, No. 2-8, pp. 247-256, 1997.

62. Kasana, H. S., and Kumar, K. D., “A Note on Improving Initial BFS to Unbalanced Transportation Problems,” News Bull. Calcutta Mathematical Society, Vol. 19, No.1, 1996, pp.15-17.


Articles Submitted to Refereed Journals
63. Rahimi, A., Abreu, N., and Kumar, K. D., “Fault Diagnosis and Identification for Control-Moment-Gyros Using a Novel Adaptive Extended Kalman Filter,” AIAA Journal of Guidance, Control and Dynamics, 2012. (under review; Date of submission: January 16, 2012; Log No. G10774).

64. Zou, A., and Kumar, K., D., “Neural Network-Based Attitude Coordination Control for Spacecraft Formation Flying with Input Saturation,” IEEE Transactions on Neural Networks, 2011. (under review; Date of submission: July 25, 2011; Log No. TNN-2011-B-3376).

65. Varma, S., and Kumar, K. D., “Satellite Attitude Control Using Four Solar Flaps in Underactuated Configuration,” IEEE Transactions on Control System Technology, 2011. (under revision; Date of submission: April 11, 2011; Log No. TCST-2011-0181).

66. Godard and Kumar, K., D., “A Novel Single Thruster Control Strategy for Spacecraft Attitude Stabilization,” AIAA Journal of Guidance, Control and Dynamics, 2011. (under review; Date of submission: January 24, 2011; Log No. G10237).

67. Shahid, K. and Kumar, K. D., “Multiple Spacecraft Formation Reconfiguration using Solar Radiation Pressure,” Control Engineering Practice, 2012. (under review; Date of submission: January 8, 2012; Log No. CONENGPRAC-D-12-00006). (revised)

68. Liu, X., Kumar, K. D., and Zou, A., “Model-based Control of Networked Spacecraft Formation Flying via Backstepping Approach,” Automatica, 2010. (under review; Date of submission: April 14, 2010; Revised Manuscript Submitted: January 1, 2011; Log No. 10-0323).

69. Godard, and Kumar, K., D., “Robust Station-keeping and Reconfiguration of Underactuated Spacecraft Formations,” Control Engineering Practice, 2010. (under review; Date of submission: July 23, 2010; Log No. CONENGPRAC-D-10-00284).

70. Liu, X., Marquez, H., Kumar, K. D., and Lin, Y., “Sampled-data control of networked nonlinear systems with time-varying delay,” International Journal of Robust and Nonlinear Control (under review; Date of submission: July 28, 2009; Log No. RNC-09-0204).

Other Refereed Contributions (e.g., communications, papers in refereed conference proceedings, etc.)
71. Li, J., and Kumar, K. D., “Intelligent Fault Detection, Identification and Control of Satellite Formation Flying,” Proceedings of the ICINCO- 8th International Conference on Informatics in Control, Automation and Robotics, Noordwijkerhout, The Netherlands, July 28-31, 2011.

72. Liu, X., and Kumar, K. D., “Model-based Control of Networked Spacecraft Formation Flying via Backstepping Approach,” Proceedings of the CCC2011-30th Chinese Control Conference, Yantai, China, July 22-24, 2011.

73. Li, J., and Kumar, K. D., “Decentralized Fuzzy Fault Tolerant Control for Multiple Satellites Attitude Synchronization,” accepted for presentation at 2011 IEEE International Conference on Fuzzy Systems, Taipei, Taiwan, June 27-30, 2011.

74. Li, J., Pan, Y., and Kumar, K. D., “Design of Asymptotic Second-order Sliding Mode Fault Tolerant Control for Satellite Formation Flying,” Proceedings of the AIAA Guidance, Navigation, and Control Conference, Toronto, Canada, August 2-5, 2010.

75. Varma, S., and Kumar, K. D., “Multiple Satellite Formation Flying Using Differential Solar Radiation Pressure,” AIAA-2010-7960, Proceedings of the AIAA Guidance, Navigation, and Control Conference, Toronto, Canada, August 2-5, 2010.

76. Godard, and Kumar, K.D., “A Novel Single Thruster Control Strategy for Spacecraft Attitude Stabilization,” AIAA-2010-8197, Proceedings of the AIAA Guidance, Navigation, and Control Conference, Toronto, Canada, August 2-5, 2010.

77. McVittie, G., Kumar, K. D., and Liu, G., “Reduced Input Control of an Underactuated Satellite Formation,” AIAA-2010-7710, Proceedings of the AIAA Guidance, Navigation, and Control Conference, Toronto, Canada, August 2-5, 2010.

78. Li, J., Pan, Y., and Kumar, K. D., “Design of Asymptotic Second-order Sliding Mode Fault Tolerant Control for Satellite Formation Flying,” Proceedings of the AIAA Guidance, Navigation, and Control Conference, Toronto, Canada, August 2-5, 2010.

79. Patel, S., Kumar, K. D., Misra, A. K., and Ng, A., “Attitude Control of Miniature Satellites using Nanowheels and Control Moment Gyros,” 12th International Space Conference of Pacific-basin Societies (ISCOPS) AAS/JRS/CSA Symposium, Montreal, Quebec, Canada, July 27 – 30, 2010; Advances in the Astronautical Sciences Series, AAS 10-432, Vol. 138, 2010, pp. 335-354.

80. Varma, S. and Kumar, K. D., “Satellite Formation Flying Using Aerodynamic Drag and/or Solar Radiation Pressure,” 12th International Space Conference of Pacific-basin Societies (ISCOPS) AAS/JRS/CSA Symposium, Montreal, Quebec, Canada, July 27 – 30, 2010; Advances in the Astronautical Sciences Series, AAS 10-422, Vol. 138, 2010, pp. 227-244.

81. Shahid, K. and Kumar, K. D., “Formation Control at the Sun-Earth L2 Libration Point Using Solar Radiation Pressure,” 12th International Space Conference of Pacific-basin Societies (ISCOPS) AAS/JRS/CSA Symposium, Montreal, Quebec, Canada, July 27 – 30, 2010; Advances in the Astronautical Sciences Series, AAS 10-418, Vol. 138, 2010, pp. 177-204.

82. Pan, Y., Liu, G., and Kumar, K. D., “Robust Stability Analysis of Asymptotic Second-order Sliding Mode Control System Using Lyapunov Function,” Proceedings of the 2010 IEEE International Conference on Information and Automation (ICIA 2010), Harbin, China, June 20-23, 2010, pp. 313-318.

83. Liu, X., and Kumar, K. D., “Formation Control of Spacecraft Flying with Network-Induced Delays and Packet Dropouts,” Proceedings of the 8th IEEE International Conference on Control and Automation, Xiamen, China, June 9-11, 2010, pp. 480-485.

84. Stuurman, B., and Kumar, K. D., “Feasibility of Using Low Cost GPS and Inertial Measurement Unit for Orbit and Attitude Measurement of Small Satellites,” ASP-10-121, Proceedings of the 15th Canadian Aeronautics and Space Institute (CASI) Astronautics Conference, ASTRO 2010, Toronto, Ontario, May 4-6, 2010.

85. Shahid, K., and Kumar, K. D., “Underactuated Stationkeeping Control at the Sun-Earth L2 Libration Point using Solar Radiation Pressure,” ASP-10-102, Proc. of the 15th Canadian Aeronautics and Space Institute (CASI) Astronautics Conf., ASTRO 2010, pp. 1-6, Toronto, Ontario, May 4-6, 2010.

86. Zou, A. M., and Kumar, K. D., “Adaptive Fuzzy Fault-Tolerant Control of Spacecraft Formation Flying,” ASP-10-118, 15th Canadian Aeronautics and Space Institute (CASI) Astronautics Conference, ASTRO 2010, Toronto, Ontario, May 4-6, 2010.

87. Lee, D., and Kumar, K. D., “Tetrahedron Formation Flying Using On-board Thrusters for Miniature Satellites,” ASAP-10-109, 15th Canadian Aeronautics and Space Institute (CASI) Astronautics Conference, ASTRO 2010, Toronto, Ontario, May 4-6, 2010.

88. Li, J., and Kumar, K. D., “Fault Tolerant Control Applied to Miniature Satellites Formation Flying Missions,” AS-10-106, 15th Canadian Aeronautics and Space Institute (CASI) Astronautics Conference, ASTRO 2010, Toronto, Ontario, May 4-6, 2010.

89. Randhawa, M. S., Khan, O., Chogal, N., and Kumar, K. D., “Design and Development of Power Subsystems for RyePicoSats,” AS-10-105, 15th Canadian Aeronautics and Space Institute (CASI) Astronautics Conference, ASTRO 2010, Toronto, Ontario, May 4-6, 2010.

90. Khan, S., Ehsan, S., Mupalla, R., and Kumar, K. D. “Design and Development of Payload for RyePicoSats,” AS-10-104, 15th Canadian Aeronautics and Space Institute (CASI) Astronautics Conference, ASTRO 2010, Toronto, Ontario, May 4-6, 2010.

91. Manzoor, W. A., and Kumar, K. D., “Formation Flying of Spacecraft at Earth-Moon Libration Points Using Solar Radiation Pressure,” ASP-10-107, 15th Canadian Aeronautics and Space Institute (CASI) Astronautics Conference, ASTRO 2010, Toronto, Ontario, May 4-6, 2010.

92. Tarantini, V., and Kumar, K. D., “Three-Axis Attitude Control of a Picosatellite Using Solar Radiation Pressure,” ASP-10-108, 15th Canadian Aeronautics and Space Institute (CASI) Astronautics Conference, ASTRO 2010, Toronto, Ontario, May 4-6, 2010.

93. Godard, and Kumar, K. D., “Robust Control of Underactuated Spacecraft Formations,” ASP-10-113, Proceedings of the 15th Canadian Aeronautics and Space Institute (CASI) Astronautics Conference, ASTRO 2010, Toronto, Ontario, May 4-6, 2010.

94. Patel, S., and Kumar, K. D., “Design and Development of Fluid Based Attitude Control System,” AS-10-101, 15th Canadian Aeronautics and Space Institute (CASI) Astronautics Conference, ASTRO 2010, Toronto, Ontario, May 4-6, 2010.

95. Patel, T. R., Kumar, K. D., and Behdinan, K., “Nonlinear Control for Three-Axis Stabilized Satellites based on Aerodynamic Torques,” AS-10-120, 15th Canadian Aeronautics and Space Institute (CASI) Astronautics Conference, ASTRO 2010, Toronto, Ontario, May 4-6, 2010.

96. Varma, S., and Kumar, K. D., “Three Axis Attitude Control of a Picosatellite Using Solar Radiation Pressure,” AIAA-2010-1983, Proceedings of SpaceOps 2010 conference, Huntsville, Alabama, April 25-30, 2010.

97. Kumar, K. D. and Zou, A. M., “Attitude Control of Miniature Satellites Using Movable Masses,” AIAA-2010-1982, Proceedings of SpaceOps 2010 conference, Huntsville, Alabama, April 25-30, 2010.

98. Stuurman, B., and Kumar, K. D., “Design and Development of RyeFemSat,” AIAA-2010-2157, Proceedings of SpaceOps 2010 conference, Huntsville, Alabama, April 25-30, 2010.

99. Li, J., and Kumar, K. D., “Fault Tolerant Attitude Control during Formation Flying,” Proceedings of the 20th AAS/AIAA Space Flight Mechanics Meeting, San Diego, CA, February 14-17, 2010.

100. Liu, X., and Kumar, K. D., “Formation Keeping of Multiple Spacecraft with Communication Delays,” Paper No. AAS 10-177, Proceedings of the 20th AAS/AIAA Space Flight Mechanics Meeting, San Diego, CA, February 14-17, 2010, pp. 1165-1179.

101. Wong, F., and Kumar, K. D., “Formation Flying of Satellites at the Earth-Moon L4 Triangular Libration Point Using Solar Radiation Pressure,” Paper No. AAS 10-158, Proceedings of the 20th AAS/AIAA Space Flight Mechanics Meeting, San Diego, CA, February 14-17, 2010, pp. 879-898.

102. Godard, Abreu, N., and Kumar, K. D., “Fault-tolerant Attitude Control of Miniature Satellites using Reaction Wheels,” Paper No. AAS 10-111, Proceedings of the 20th AAS/AIAA Space Flight Mechanics Meeting, San Diego, CA, February 14-17, 2010, pp. 159-178.

103. Varma, S., and Kumar, K. D., “Satellite Formation Flying using Differential Aerodynamic Drag,” Paper No. AAS 10-160, Proceedings of the 20th AAS/AIAA Space Flight Mechanics Meeting, San Diego, CA, February 14-17, 2010, pp. 919-932.

104. Varma, S., and Kumar, K. D., “Three-Axis Attitude Control of Satellites using Solar Radiation Pressure,” Paper No. AAS 10-146, Proceedings of the 20th AAS/AIAA Space Flight Mechanics Meeting, San Diego, CA, February 14-17, 2010, pp. 715-726.

105. Kumar, K. D., “Design and Development of Miniature Satellites at Ryerson University,” 2nd Bihar Science Conference, Patna, India, January 30- February 1, 2009.

106. Kumar, K. D., “Research and Development Needs for Bihar in 21st Century: A Personal Perspective,” 2nd Bihar Science Conference, Patna, India, January 30- February 1, 2009.

107. Kumar, K. D., “Dynamics of Flexible Tethered Satellite System with Kite-Like Tether Configuration,” Proceedings of the 9th International Conference on Vibration Problems, IIT Kharagpur, India, January 19-22, 2009.

108. Kumar, K. D., “Nonlinear Control of Satellite Attitude Using Aerodynamic Forces,” Proceedings of the International Conference on Emerging Technologies and Applications in Engineering, Technology and Sciences (ICETAETS-2008), Rajkot, India, January 13-14, 2008, pp. 462-466.

109. Godard and Kumar, K. D., “Control of Tethered Satellite Systems in presence of Tether Failures,” Paper No. IAC-07-C1.2.03, Proceedings of 58th International Astronautical Federation Congress, Hyderabad, India, September 24-28, 2007.

110. Kumar, K. D., “Ryerson University Initiatives in Design and Development of Miniature Satellites Including Femto-Satellites,” Paper No. IAC-07-B4.4.02, Proceedings of 58th International Astronautical Federation Congress, Hyderabad, India, September 24-28, 2007.

111. Kumar, K. D., “Satellite Attitude Stabilization using Magnetic Torquer and Solar Radiation Pressure,” Paper No. IAC-07-D1.2.03, Proceedings of 58th International Astronautical Federation Congress, Hyderabad, India, September 24-28, 2007.

112. McVittie, G., and Kumar, K. D., “Design of a COTS Femto-Satellite and Mission,” AIAA-2007-6034, Proceedings of the AIAA Space 2007 Conference and Exposition, Vol. 1, California, USA, Sept. 18–20, 2007, pp. 300-306.

113. Alger, M.W.R., and Kumar, K. D., “A Standard for Pico-satellite Subsystem Interfaces,” AIAA-2007-6036, Proceedings of the AIAA Space 2007 Conference and Exposition, Vol. 1, California, USA, Sept. 18–20, 2007, pp. 307-315.

114. Kumar, K. D., and Shah, M., “Formation Control of Satellites Orbiting Asteroids,” MCMAT2007-30431, presented at ASME Applied Mechanics and Materials Conf., Texas, USA, June 3-7, 2007.

115. Shahid, K., and Kumar, K. D., “Orbit and Attitude Control of Satellites using Solar Radiation Pressure,” MCMAT2007-30465, presented at ASME Applied Mechanics and Materials Conference, Texas, USA, June 3-7, 2007.

116. McVittie, G., Kumar, K. D., and Liu, G., “Control of Satellite Formation Using Along Track Thrust,” Proceedings of the 21st Canadian Congress of Applied Mechanics (CANCAM 2007), Toronto, June 3–7, 2007, pp. 234-235.

117. Kumar, K. D., “Attitude Maneuver of Satellites Using Aerodynamic Forces,” Proc. of the 21st Canadian Cong. of Applied Mechanics (CANCAM 2007), Toronto, June 3–7, 2007, pp. 236-237.

118. Godard, Kumar, K. D., and Tan, B., “Attitude Control of Spacecraft using Space Manipulators,” Proceedings of the Ninth IASTED International Conference on Control and Applications, Montreal, Canada, May 30 – June 1, 2007.

119. Kumar, K. D., and Patel, T., “Controlling Tethered Satellite Systems Along Local Horizontal Configuration,” Paper No. 503, presented at Canadian Aeronautics and Space Institute 54th Aeronautics Conference and Annual General Meeting, Toronto, April 24-26, 2007.

120. Kumar, K. D., “Satellite Attitude Stabilization Using Fluid Rings,” Paper No. 505, presented at Canadian Aeronautics and Space Institute 54th Aeronautics Conference and Annual General Meeting, Toronto, April 24-26, 2007.

121. Kuo, Y. L., Kumar, K. D., Behdinan, K., and Fawaz, Z., “Attitude Control of Miniature Spacecraft Using MEMS Actuators,” Paper No. S9.4, Proceedings of 20th Canadian Conference on Electrical and Computer Engineering, Vancouver, Canada, April 22-25, 2007.

122. Kumar, K. D., and Shah, M., “Attitude Dynamics and Control of Spacecraft Orbiting Asteroids,” Paper No. S77.2, Proceedings of 20th Canadian Conference on Electrical and Computer Engineering, Vancouver, Canada, April 22-25, 2007.

123. Lee, D. H., Kumar, K. D., and Bang, H. C., “Formation Flying of Small Satellites Using Coulomb Forces,” Proceedings of the KSAS-JSASS Joint International Symposium on Aerospace Engineering, Nagoya, Japan, Oct. 12–14, 2005.

124. Kumar, K. D., Tahk, M. J., and Bang, H. C., “Formation Flying of Satellites Using Aerodynamics and Solar Radiation Forces,” Proceedings of the KSAS-JSASS Joint Symposium on Aerospace Engineering, Seoul, Korea, Nov. 18–19, 2004.

125. Kumar, K. D., Bang, H. C., and Tahk, M. J., “Formation Flying of Satellites Using Solar Radiation Pressure,” ISTS-2004-d-25, 24th International Symposium on Space Technology and Science, Miyazaki, Japan, May 30 – June 6, 2004.

126. Kumar, K. D., “A Review on Dynamics and Control of Tethered Satellite Systems,” ISTS-2004-d-30, 24th International Symposium on Space Technology and Science, Miyazaki, Japan, May 30 – June 6, 2004.

127. Kumar, K. D., Bang, H. C., and Tahk, M. J., “Free Space Optics : Challenges, Opportunities and Prospects,” International Conference and Exhibition SUPERCOMM INDIA 2004, New Delhi, India, February 4- 6, 2004.

128. Kumar, K. D., Bang, H. C., and Tahk, M. J., “Formation Flying of Rotating Linear Array Tethered Satellite Systems,” Proceedings of the Korean Society of Aeronautics and Space Sciences (KSAS) 1st International Sessions, Gyeongju, Korea, Nov. 14 – 15, 2003, pp. 103-110.

129. Kumar, K. D., “Dynamics and Control of Tethered Satellite Systems: A Review,” Proceedings of the Korean Society of Aeronautics and Space Sciences (KSAS) 1st International Sessions, Gyeongju, Korea, Nov. 14 – 15, 2003, pp. 146-155.

130. Kumar, K. D., and Yasaka, T., “Satellite Formation Keeping and Reconfiguration using Neural Networks and Genetic Algorithms,” IAC-02-A.2.06, 53rd International Astronautical Federation Congress, Houston, Texas, USA, October 10-19, 2002.

131. Kumar, K. D., “Line-of-Sight Pointing of Multiple Micro-satellites in Non-equatorial Orbits,” IAC-02-M.4.06, 53rd International Astronautical Federation Congress, Houston, Texas, USA, October 10-19, 2002.

132. Kumar, K. D., and Yasaka, T., “Dynamics of Kite-like Tethered Satellite System,” ISTS 2002-d-42, 23nd International Symposium on Space Technology and Science, Shimane, Japan, May 26 – June 2, 2002, pp. 863-868.

133. Kumar, K. D., Hanada, H., and Yasaka, T., “Payload Propulsion using a Spinning Platform through Tether,” ISTS 2002-d-43, 23nd International Symposium on Space Technology and Science, Shimane, Japan, May 26 – June 2, 2002, pp. 869-874.

134. Sakamoto,Y., Hiroshi, Y., Nishimine, A., Miyazaki, M., Kumar, K. D., Hirayama, H, and Yasaka, T., “Development of Low Cost Micro Tethered Satellite System,” ISTS 2002-f-15, 23nd International Symposium on Space Technology and Science, Shimane, Japan, May 26 – June 2, 2002, pp. 1382-1387.

135. Kumar, K. D., and Miyazawa, Y., “Flight Control System Design Using Neural Networks and Genetic Algorithms,” Proceedings of JSASS 14th International Sessions in 38th Aircraft Symposium, October 11-13, 2000, Japan, pp. 693-696.

136. Kumar, K. D., and Kumar, K., “Line-of-Sight-Pointing Stability for ‘Drifting’ Satellites in Non-Equatorial Orbits,” AIAA-2000-4147, AIAA Guidance, Navigation, and Control Conference and Exhibit, Denver, CO, USA, August 14-17, 2000.

137. Kumar, K. D., “Uninturrupted Satellite Communications in Non-Equatorial Orbits,’’ AIAA-2000-4530, AIAA/AAS Astrodynamics Specialist Conference, Denver, CO, USA, August 14-17, 2000.

138. Kumar, K. D., “Tethered Dual Satellite System for Line-of-Sight-Pointing in Non-Equatorial Geosynchronous Orbit,” 22nd International Symposium on Space Technology and Science, Morioka, Japan, May 28 – June 4, 2000, pp. 1768-1773.

139. Kumar, K. D., and Nakajima, A., “Angular Momentum Dumping of Debris through Tether System,” 22nd International Symposium on Space Technology and Science, Morioka, Japan, May 28 – June 4, 2000, pp. 1780-1785.

140. Kumar, K. D., and Nakajima, A., “Attitude Motion Control of Debris through Tether System,” 43rd Space Science and Technology Symposium, Kobe, Japan, October 22-23, 1999, pp. 213-218.

141. Kumar, K. D., and Miyazawa, Y., “Orbital Maneuvering of Reusable Launch Vehicle through Tether,” Proc. of Japan Society for Aeronautical and Space Sciences (JSASS) 13th International Sessions in 37th Aircraft Symposium, Tokyo, Japan, October 13-15, 1999, pp. 737-740.

142. Kumar, K. D., “Satellite Attitude Management through Tether,” Proceedings of Tether Group Meeting, held at National Aerospace Laboratory, Tokyo, Japan, January 21, 1999, pp. 125-137.

143. Kumar, K. D., and Nakajima, A., “Attitude Motion Control of Debris through Tether System”, 9th Workshop on Astrodynamics and Flight Mechanics, Institute of Space and Astronautical Sciences, Sagamihara, Japan, July 22-23, 1999, pp. 43-48.

144. Kumar, K., and Kumar, K. D., “Feasibility of Nearly Passive Satellite Attitude Management through Tether,” Space Engineering Conf., Birla Institute of Tech., Ranchi, India, Dec., 1998.

145. Kasana, H. S., and Kumar, K. D., “An Efficient Algorithm for Optimizing Urban Bus Routes,” National Seminar On Road Transportation–Issues and Strategies RITS’98, Edited by Trivedi, A., Batra V. S., Kumar M., Sood V. K. and Kanwar, V. S., Thapar Institute of Engineering and Technology, Patiala, October 23-24, 1998, pp. 1-5.

146. Kumar, K. D., Kumar, K., and Kasana, H.S., “Uninterrupted Communications through Adaptive Fuzzy Logic Controller using Tethers for Satellites in Elliptic Orbits,” Paper No. IAF-98-M.4.04, 49th International Astronautical Federation Congress, Melbourne, Australia, September 28 - October 2, 1998.

147. Kumar, K. D., “Satellite Attitude Control and Maneuver through Tethers,” Andhra Pradesh Young Scientist Convention, Hyderabad, India, August 25-27, 1998.

148. Kasana, H. S., and Kumar, K. D., “Extremum Difference Method for Transportation and Generalized Assignment Problems,” National Seminar on Recent Trends and Advances of Mathematics and Statistics in Engineering and Technology, Indian School of Mines, Dhanbad, November 28-29, 1997.

149. Kumar, K., and Kumar, K. D., “Passive Three-Axis Satellite Pointing Stability through Tether,” Paper No. IAF- 97-A.3.02, 48th International Astronautical Federation Congress, Italy, October 6-10, 1997.

150. Kumar, K. D., Prasad, M., Kasana, H. S., and Prasad, M. A., “Goal Programming Model for Emission Reduction and Optimum Allocation of Energy Resources,” Ninth Indian Engineering Congress, Calcutta, December 15-20, 1994.

151. Prasad, M. A., Kumar, K. D., Prasad, M., and Tandon, A., “Integrated energy development through recycling of solid wastes,” Tenth National Convention of Chemical Engineers, Kanpur, India, October 29-30, 1994.

152. Kumar, K. D., Khan, B. K., and Vyas, N. S., “Graphite / Polymide Derived from 3F Diamine and Pyromellitic Dianhydride as a Promising Candidate for Thermal Protection System of the HL-20,” Second Thermal Structures Conference, University of Virginia, USA, October 18-20, 1994.

153. Khan, B. Kant, Kumar, K. D., and Gupta, B. D., “Quality Culture-A Key to Success in Entrepreneurship Development,” Proceedings of National Programme on Entrepreneurship and Technology Development, Delhi College of Engineering, Delhi, India, March 4-5, 1994.

154. Khan, B. Kant and Kumar, K. D., “Non–Conventional Energy: A solution to Energy Crisis,” Proceedings of Ninth National Convention of Mechanical Engineers, October 15-17, I.I.T. Kanpur, 1993, pp. 228-232.

155. Kumar, K. D., “Suggested Control Mechanism for Spin Stabilization of Projectile,” Proceedings of MEET'N'93 First Joint ASCE/ASME/SES Meeting, The University of Virginia, USA, June 6-9, 1993.
155. Kumar, K. D., Sharma, P. B., and Kundra, T. K., “Slip Characteristics between Two Spinning Discs,” Proceedings of 58th Annual Conference of Indian Mathematical Society, March 22-24, 1993, Banaras Hindu University,Varanasi, India.

156. Kumar, K. D., “Control Mechanism of Spin Stabilization of Projectile,” Proceedings of 35th Congress of India Society of Theoretical and Applied Mechanics, Pantnagar, January 1993.

157. Kumar, K. D., and Agarwal, K. K., “Steel Tube Handling by use of Linear Motors,” Proceedings of Fifth National Convention of Production Engineers, University of Roorkee, Roorkee, September 25-27, 1989.

158. Kumar, K. D., “Design of An Automatic Drilling Fixture for Mirror Housing an Aircraft Component,” APOGEE’89 an All India Student Seminar, Birla Institute of Technology and Science, Pilani, March 1-4 , 1989. (Awarded First Prize)

159. Kumar, K. D., “Design of Pneumatic Drilling Fixture for Mirror Housing an Aircraft Component,” TRYST’89 An All India Student Seminar, Indian Institute of Technology, Delhi, Jan. 12-13, 1989.

Books
  •  “Fundamentals of Spacecraft Dynamics and Control,” accepted for publication at Springer-Verlag, Germany, 2010.

  • “Fundamentals of Avionics Systems,” Krishna Dev Kumar, Ryerson University Book Store, Toronto, 2008.

  • “Fundamentals of Dynamics and Control of Space Systems,” Krishna Dev Kumar, Ryerson University Book Store, Toronto, 2006.

  • “Solution Manual: Fundamentals of Dynamics and Control of Space Systems,” Krishna Dev Kumar, Ryerson University Book Store, Toronto, 2006.

  • “Laboratory Manual: Cansat Construction,” Krishna Dev Kumar, Ryerson University Book Store, Toronto, 2006.

  • “Introductory Operations Research: Theory and Applications,” Springer-Verlag, Germany, 580 pages, 2004. (co-authored with H. S. Kasana)

Patents
  •  Kumar, K. D., Bang, H. C., and Tahk, M. J., “Method for Attitude Control of Satellites in Elliptic Orbits Using Solar Radiation Pressure,” Korean Patent No. 10-2006-005456; Registration No. 10-0573876-0000; Application No. 10-2004-0054245; Date of filing: 2004-07-13; US Patent No. 7,185,856; Date of Filing: 2004-12-15; Date of Publication: 2007-03-06 (Bang, H.C, Kumar, K.D., and Tahk, M.J.); European Patent No. EP 1 616 790 A1, Application No. 04027905.1, Date of filing 2004-11-24, Date of publication: 2006-01-18 Bulletin 2006/03.

  • Kumar, K. D., Bang, H. C., and Tahk, M. J., “Method for Attitude Control of Satellites using Fluid Rings,” Publication No. KR20060108370, Publication Date: 2006-10-18, Korean Patent No. 10-2006-0108370; Application No. 10-2005-0030560; Date of filing: 2005-04-13.