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Design concepts and performance of NASA X-band transponder (DST) for deep space spacecraft applicationsThe design concepts and measured performance characteristics of an X band (7162 MHz/8415 MHz) breadboard deep space transponder (DST) for future spacecraft applications, with the first use scheduled for the Comet Rendezvous Asteroid Flyby (CRAF) and Cassini missions in 1995 and 1996, respectively. The DST consists of a double conversion, superheterodyne, automatic phase tracking receiver, and an X band (8415 MHz) exciter to drive redundant downlink power amplifiers. The receiver acquires and coherently phase tracks the modulated or unmodulated X band (7162 MHz) uplink carrier signal. The exciter phase modulates the X band (8415 MHz) downlink signal with composite telemetry and ranging signals. The receiver measured tracking threshold, automatic gain control static phase error, and phase jitter characteristics of the breadboard DST are in good agreement with the expected performance. The measured results show a receiver tracking threshold of -158 dBm and a dynamic signal range of 88 dB.
Document ID
19920059861
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Mysoor, Narayan R.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Perret, Jonathan D.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Kermode, Arthur W.
(JPL Pasadena, CA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking
Meeting Information
Meeting: 1991 IEEE Aerospace Applications Conference
Location: Crested Butte, CO
Country: United States
Start Date: February 3, 1991
End Date: February 8, 1991
Sponsors: IEEE
Accession Number
92A42485
Distribution Limits
Public
Copyright
Other

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