Title :
The analysis of a coherent frequency hopped spread spectrum system
Author :
Su, Chun-Meng ; Milstein, Laurence B.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA, USA
Abstract :
A digital joint phase/timing tracking loop for a coherent frequency-hopped spread-spectrum system is analyzed for both training mode and tracking performance. Under minor assumptions, the phase error is modeled as a homogeneous finite Markov chain. The length of the training period, the approximate probability of entering the tracking range, the steady-state average error probability, and the mean-time to loss-of-lock are derived. The effects of both nonzero RF phase error and cubic channel phase response are presented. It is shown that the performance of the system can be designed to be close to that of a perfectly synchronized system.<>
Keywords :
Markov processes; errors; frequency agility; spread spectrum communication; tracking systems; RF phase error; coherent frequency hopped spread spectrum system; cubic channel phase response; digital joint phase/timing tracking loop; homogeneous finite Markov chain; phase error; steady-state average error probability; tracking performance; training mode; Error probability; Frequency estimation; Jamming; Performance analysis; RF signals; Radio frequency; Signal generators; Spread spectrum communication; Steady-state; Tracking loops;
Conference_Titel :
Military Communications Conference, 1988. MILCOM 88, Conference record. 21st Century Military Communications - What's Possible? 1988 IEEE
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/MILCOM.1988.13453
