Title :
Design and analysis of a fast frequency-hopped DBPSK communication system. I. System description and hop timing tracking loop analysis
Author :
Lo, Chingshyang ; Masry, Elias ; Milstein, Laurence B.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., La Jolla, CA, USA
fDate :
10/1/1993 12:00:00 AM
Abstract :
Design and performance analyses of a fast frequency-hopped (FFH) spread spectrum communication system employing differential binary phase shift keying (DBPSK) modulation and differentially coherent demodulation are presented. The receiver utilizes a hop timing tracking loop to lock the hop clock. Through this tracking loop, the differentially coherent demodulation of an FFH signal is made possible. The authors present the system model of an FFH/DBPSK system. A digital, full-time early-late gate timing error estimator is investigated. The tracking loop is shown to be a Markov chain, and various performance characteristics of the tracking loop are studied
Keywords :
Markov processes; demodulation; jamming; phase shift keying; spread spectrum communication; tracking; FFH signal; Markov chain; differential binary phase shift keying; differentially coherent demodulation; early-late gate timing error estimator; fast frequency-hopped DBPSK communication system; hop timing tracking loop analysis; performance characteristics; spread spectrum communication; Binary phase shift keying; Clocks; Demodulation; Frequency shift keying; Jamming; Performance analysis; Phase modulation; Spread spectrum communication; Timing; Tracking loops;
Journal_Title :
Communications, IEEE Transactions on
