DocumentCode :
2842768
Title :
A frequency tracking technique for multiple access satellite communication networks
Author :
Chandler, Edward W.
Author_Institution :
M/A-COM Gov. Syst. Inc., San Diego, CA, USA
fYear :
1990
fDate :
24-26 Apr 1990
Firstpage :
369
Lastpage :
379
Abstract :
A satellite communication system may employ frequency tracking mechanisms at each earth terminal to control transmit frequency and tuned receiver frequency. The technique presented is applicable to time division multiplexed systems having burst transmissions. Frequency tracking can provide corrections for frequency offsets due to Doppler, oscillator inaccuracies, satellite inclination angle effects, and other factors. One objective of such frequency tracking is to minimize the width of the receive frequency window that must be searched. Reducing the width of this window will in general allow the use of a more efficient waveform, or will improve signal acquisition performance for a given waveform. A general technique is presented for characterizing any number of frequency error sources, and determining optimum constant correction factors based on the characterized error sources and parameters of a given system. Optimized correction factors and associated worst-case frequency offsets are then evaluated for example UHF networks
Keywords :
frequency control; frequency division multiplexing; multi-access systems; satellite relay systems; telecommunications control; tracking; UHF networks; burst transmissions; correction factors; earth terminal; frequency control; frequency error sources; frequency offsets; frequency tracking; multiple access networks; receive frequency window; satellite communication networks; satellite communication system; signal acquisition performance; time division multiplexed systems; transmit frequency; tuned receiver frequency; waveform; Communication system control; Control systems; Downlink; Error correction; Frequency measurement; Government; Oscillators; Satellite communication; Satellite ground stations; Time division multiplexing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Tactical Communications Conference, 1990. Vol.1. Tactical Communications. Challenges of the 1990's, Proceedings of the
Conference_Location :
Fort Wayne, IN
Type :
conf
DOI :
10.1109/TCC.1990.177815
Filename :
177815
Link To Document :
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