Optimum Acquisition Method Using Parallel Partial Correlator for Spread Spectrum Communication

Abstract

In spread spectrum communication systems, synchronization acquisition and its tracking affects system performance heavily. Then fast acquisition time, hardware simplicity, and low false alarm probability are of important concerns. Obviously, so many different synch schemes have been developed that we can choose suitable one depending upon purpose.

Especially concerning synch acquisition, correlator synch should be carefully considered because it is directly related to acquisition time, hardware complexity, and false alarm probability. Therefore, in this paper, we present parallel partial correlator for synch acquisition and show the performance of this through computer simulation also. The Performance of partial correlator is evaluated in terms of acquisition time, index of discrimination, in AWGN as well as Rayleigh fading enviroment It is shown that partial correlator reduces acquisition time and hardware complexity while maintaining low false alarm probability.