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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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The threshold performance of deep-space telemetry is characterized for four turbo codes. The mathematical models given here are based on simulations that account for imperfect carrier synchronization.
This paper reexamines the notion of closed loop carrier phase synchronization motivated by the theory of maximum a posterior (MAP) phase estimation with emphasis on the development of new structures based on both maximum likelihood (ML) and average-likelihood (AL) functions.
Wind tunnel investigation of pressure fluctuations on the upper vertical tail of the x-15 when mated to the b-52 carrier aircraft
Space science - launch vehicle and carrier rocket guidance-control systems
Space science - telemetry for guided missiles and space vehicle carrier systems - from v2 to saturn
Kinetics of hydrocarbon-oxygen-nitrogen flame systems and molecular weights of chain carriers
Space carrier vehicle design is discussed in terms of mission, aerodynamics, structure, guidance, control, rocket engine, fabrication, checkout, and launching problems
Xenon and krypton as carrier gases for highly sensitive detection system for gas chromatography
Carrier rocket for national space program - germany
Xenon and krypton as carrier gases in a highly sensitive ionization system, for detection of permanent gases and organic vapors, by gas chromatography
Unified carrier, range tracking and communications system using phase-locked loop techniques for coherent spacecraft-to-Earth communications
Spectral analysis applied to digitally coded phase modulated radio frequency carrier
Gas phase nonideality and mean column pressure effects on sample retention in gas-solid partition chromatographic systems with real carrier gases
Approximate analysis of frequency-shift keyed telemetry system with uncertainty in carrier frequency
Free carrier absorption, valence band effective masses and relaxtion times in zinc antimonide cadmium antimonide alloys
Biochemical response pattern to combat flying stress of monitored carrier aircraft pilots
Swing arm carrier provides protection for flexible lines /fluid, electrical, RF/ connected to a test item that must be rotated through 360 degrees during test. It uses five gates riding on pivots to permit rotation of flexible lines through arcs of plus 180 degrees and minus 180 degrees.
Diversity receiver carrier frequency reproduction - method for providing Doppler extractor with frequency and phase information similar to received signal