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  • Freeman, Anthony; Chahat, Nacer (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2017, 2017-05-10)
    Surface deformation studies using repeat-pass interferometric SAR have evolved into a powerful tool for geophysicists studying earthquake fault zones, volcanoes, ice sheet motion, and subterranean aquifers. Longer wavelengths ...
  • Freeman, Anthony; Chahat, Nacer (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2017, 2017-05-08)
    This paper describes the architecture of a longer wavelength, Smallsat SAR constellation of up to 12 satellites for rapid revisit surface deformation studies. The key to making such a constellation affordable is to lower ...
  • Freeman, Tony; Chahat, Nacer (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2017, 2017-05-08)
  • Manshadi, F. (1996-02)
    The configuration, detail design, and performance of a dual S/X- band microwave feed system for the first Deep Space Network beamwaveguide antenna is reported. This antenna, which is primarily used for research and ...
  • Manshadi, F. (1995-10)
    The configuration, detail design, and performance of the dual S/X-band microwave feed system for the first Deep Space Network (DSN) beamwaveguide (BWG) antenna are reported int his paper. By using existing spare components, ...
  • Wietfeldt, R.; Bartel, N.; Rizzo, D. Del; Straten, W. Van; Cannon, W.; Novikov, S.; Bailes, M.; Stinebring, D. (1997-07-14)
  • Tran, Daniel Q.; Chien, Steve; Rabideau, Gregg; Cichy, Benjamin (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2005, 2005-07-25)
    This paper describes the design of the Autonomous Sciencecraft Experiment, a software agent that has been running on-board the EO-I spacecraft since 2003. The agent recognizes science events, retargets the spacecraft to ...
  • Sherwood, Rob; Chien, Steve; Tran, Daniel; Cichy, Benjamin; Castano, Rebecca; Davies, Ashley; Rabideau, Gregg (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2004., 2004-12-06)
    An Autonomous Science Agent is currently flying onboard the Earth Observing One Spacecraft. This software enables the spacecraft to autonomously detect and respond to science events occurring on the Earth. The package ...
  • Zheng, Jason; Katanyoutanant, Sunant; Le, Martin (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2005., 2005-09-07)
  • Smart, M. C.; Whitcanack, L. D.; Ratnakumar, B. V. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2007., 2007-11-27)
    A procedure is established to determine conditions that result in safe charging of Li-ion batteries under extreme conditions of charge rate and temperature.
  • Wilson, Keith E. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2011, 2011)
  • Ono, Masahiro; Quadrelli, Marco; Huntsberger, Terrance L. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2014, 2014-06-04)
    This paper presents a path planning method for sea surface vehicles that prevents capsizing and bow-diving in a high sea-state. A key idea is to use response amplitude operators (RAOs) or, in control terminology, the ...
  • Kuwata, Yoshiaki; Wolf, Michael; Zarzhitsky, Dimitri; Huntsberger, Terrance L. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2011., 2011-09-29)
  • Kuwata, Yoshiaki; Wolf, Michael T.; Zarzhitsky, Dimitri; Huntsberger, Terrance L. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2011., 2011-09-26)
    This paper presents a motion planning algorithm for Unmanned Surface Vehicles (USVs) to navigate safely in dynamic, cluttered environments. The proposed algorithm not only addresses Hazard Avoidance (HA) for stationary and ...
  • Tunstel, E.; Seraji, H.; Howard, A. (2002-02-21)
    This paper presents a new strategy for autonomous navigation of field mobile robots on hazardous natural terrain using a fuzzy logic approach and a novel measure of terrain transversability.
  • Horvath, Gregory; Cilloniz-Bicchi, Ferner; Chung, Seung; Dvorak, Dan; Hecox, Dave (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2011., 2011-03-21)
  • Barrow, K. D.; Croonquist, A.; Hahn, I.; Holmes, W.; Langford, D.; Liu, F. C. (2001-10-15)
    Descriptions of the payload safety requirements and processes that attached payloads must satisfy to meet to fly on the Shuttle or HTV and to be attached to the ISS from the perspective of a payload safety engineer are presented.
  • Braman, Julia M. B.; Murray, Richard M; Wagner, David A. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2007., 2007-10-29)
    Fault tolerance and safety verification of control systems are essential for the success of autonomous robotic systems. A control architecture called Mission Data System (MDS), developed at the Jet Propulsion Laboratory, ...
  • Horvath, Greg; Chung, Seung H.; Cilloniz-Bicchi, Ferner (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2011., 2011-03-21)
    The flight software on virtually every mission currently managed by JPL has several major flaws that make it vulnerable to potentially fatal software defects. Many of these problems can be addressed by recently developed ...
  • Menzies, R. T.; Yorke, H.; Bradford, M. (2002)