Data relay satellite phased array
S band communications repeater using retrodirective phased array on synchronous altitude data relay satellite /DRS/ for intersatellite and ground links
Dod, L. R.↗
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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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Tracking and data relay satellites
Geostationary tracking and data relay satellites /tdrs/, discussing system design and advantages
Jones, A. E.↗
A stability bound for relay control systems in non-phase variable form
Relay control systems stability bound determination in nonphase variable form, assuming unknown system parameters
Goldstein, B. F.↗
Tracking and data relay satellite system - An overview
Tracking and data relay satellite system in low altitude synchronous orbit
Barritt, P. F.↗
The ATS-F/Nimbus-E Tracking and Data Relay Experiment
Tracking and data relay satellite system performance by ATS and Nimbus spacecraft for range and range rate tracking and command and data transmission
Heffernan, P. J.↗
Telecommunications capabilities of the GSFC Mark 1 tracking and data relay satellite
Design and telecommunications capabilities of Mark 1 tracking and data relay satellite
Heffernan, P. J.↗
Improved relay chatter detector
Detector provides go/no-go sensing of momentary relay or contact opening during vibration testing. Device compares duration of unwanted openings to calibrated standard and lights indicator if standard is exceeded. Stability and reliability are higher than in any other comparable device.
Reynolds, R. K.↗
Multipath study for a low altitude satellite utilizing a data relay satellite system Final report
Multipath operation of low altitude satellite using data relay satellite system
Eggert, D.↗
Study of a low altitude satellite utilizing a data relay satellite system, phase 2 Final report
Analysis of low altitude satellite operating in conjunction with data relay satellite system - Phase 2
Eggert, D.↗
The ATS-F/Nimbus-E tracking and data relay experiment
ATS-F Nimbus E tracking and data relay experiment
Heffernan, P. J.↗
Linear repeater design for the GSFC Mark 1 tracking and data relay satellite
Linear repeater design for tracking and data relay satellite system
Heffernan, P. J.↗
Time division radio relay synchronizing system using different sync code words for in sync and out of sync conditions Patent
Time division relay synchronizer with master sync pulse for activating binary counter to produce signal identifying time slot for station
Campbell, D. R.↗
Receiver antennas for application in a television broadcast relay system
Spiral and helical UHF antennas for home TV reception via satellite broadcast relay system
Graf, E. R.↗
Circuit breaker utilizing magnetic latching relays Patent
Relay circuit breaker with magnetic latching to provide conductive and nonconductive paths for current devices
Reinhold, H. W.↗
Integrating the relay link design and trajectory design for the Viking '75 mission
Relay data link and trajectory design integration for Viking orbiter 1975 mission
Marquet, D. W.↗
Relay-link communications geometry for a Jupiter atmospheric probe
Jupiter atmospheric probe using relay-link communications geometry between probe and flyby spacecraft for 3.5 hr intervals
Fischer, R. B.↗
STADAN and data relay satellite simulation (emphasis on the scheduler)
A set of computer programs was developed which can be used to simulate the operation of NASA's Satellite Tracking and Data Acquisition Network (STADAN). The simulation consists of two major modules, a computerized algorithmic satellite scheduler (CASS) and a generalized evaluation model simulator (GEMS). CASS generates in-view time intervals of satellites over ground stations, and using these candidate passes, produces a schedule of service times for specific satellites to be serviced by specific ground stations in an attempt to fulfill certain inputted service requirements. GEMS than examines how well STADAN fulfills this schedule in terms of the availability and dependability of different (inputted) complements of equipment at the ground stations. The simulation was modified to allow for the introduction of one or more tracking and data relay satellites, which can serve as orbital receiving and command stations.
Kerne, B.↗
A pseudo-noise transponder design for low data rate users of the tracking and data relay satellite system
A compromise optimum design for the low data rate users of the Tracking and Data Relay Satellite System (TDRSS) is presented. Design goals for the TDRSS are employed in this report to arrive at the transponder design. Multipath, R.F.I., antenna pattern anomolies, other user signals, and other definable degrading factors are included as trade-off parameters in the design. Synchronization, emergency voice, user stabilization, polarization diversity and error control coding are also considered and their impact on the transponder design is evaluated.
Birch, J. N.↗