Abstract:

PDS(Pattern time Delay Shift coding) scheme can decrease the aberrance of the signal caused by the channel multipath effectively, and RS code has the superiority combining with the PDS scheme congenitally. Integrating RS code with PDS scheme is achieved, and the performance of selected RS code utilized in underwater acoustic pattern time delay shift coding communication system is discussed. The performance of RS code and Convolution code used in PDS system is compared. The simulation results showthat the performance of RS code is much better than convolution code in PDS system. Lake trial results prove its superiority.

Key words: underwater acoustic communication, pattern time delay shift coding(PDS), RS code, convolution code