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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Preliminary results are presented for the Primordial Structure Investigation mission study.
In this paper, the use of residual carier techniques with no subcarrier (PCM/PM) will be advocated. It will be shown that the use of the PCM/PM technique under appropriate conditions will reap many advantages without sacrificing performance. Foremost amoung these advantages is the lower bandwidth, which can be extremely useful when antenna arraying is employed or when tracking multiple spacecraft signals within the field of view of a single antenna.
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This paper lays out language constructs and capabilities, code features, and VML operations development concepts. The ability to migrate to the spacecraft functionality which is more traditionally implemented on the ground is examined.
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Caltech's Jet Propulsion Laboratory (JPL) has been processing digital image data returned from remote sensing instruments on spacecraft sine the Mariner 4 spacecraft flew by Mars in 1964.
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An advanced network interface was designed and implemented by a team from the Jet Propulsion Lab with support from the European Space Operations Center. This poster shows the requirements for the interface, the design, the topology, the testing and lessons learned from the whole implementation.
In this report, high-rate ground communications are considered those that can support spacecraft data flow from the antenna to the mission operations center at rates higher than 10 Mbps.
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This paper will present the research data using samples collected from the Mars 2001 orbiter, Odyssey, and all environmental samples collected from the cleanroom, during final assembly.
In this paper, a systems engineering model is presented that identifies the technologies that proide the most significant impact for a given mission.
Launched in 1997, the Cassini-Huygens Mission sent the largest interplanetary spacecraft ever built in the service of science. Carrying a suite of 12 scientific instruments and an atmospheric entry probe, this complex spacecraft to explore the Saturn system may not have gotten off the ground without undergoing significant design changes and cost reductions.