DocumentCode
1857317
Title
Carrier false lock performance for TDRS TT&C transponder
Author
Tsang, Chit-Sang
Author_Institution
Dept. of Electr. Eng., California State Univ., Long Beach, CA, USA
fYear
1994
fDate
5-12 Feb 1994
Firstpage
355
Lastpage
366
Abstract
In this paper the mechanism of carrier false lock phenomenon of a design of TDRS TT&C transponder is analyzed in details. It is found that the carrier false lock is due to the excessive time delays in the filters and other electronic components in the long tracking loop. The stability of the AGC and the command lock out issues of the same transponder are also addressed. Suggestions on the fixes are also provided
Keywords
automatic gain control; data communication systems; digital simulation; satellite relay systems; synchronisation; telecommunications computing; telemetering; tracking; transponders; AGC; TDRS TT&C transponder; carrier false lock performance; carrier synchronisation; command lock; filters; stability; time delays; tracking loop; Baseband; Delay effects; Design automation; Detectors; Filters; Frequency synchronization; Sampling methods; Satellite ground stations; Stability; Transponders;
fLanguage
English
Publisher
ieee
Conference_Titel
Aerospace Applications Conference, 1994. Proceedings., 1994 IEEE
Conference_Location
Vail, CO
Print_ISBN
0-7803-1831-5
Type
conf
DOI
10.1109/AERO.1994.291184
Filename
291184
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