Some algorithms for DSSS signal processing with time-shift keying for long-distance underwater communication

This paper is devoted for designing and investigation of some algorithms for direct sequence spread spectrum (DSSS) signal processing with time-shift keying for underwater communication. The results of marine experiments for developed system performance evaluation in shallow sea (depth ∼ 20–30 m) on distances up to 10 km on frequency of 12 kHz (bandwidth of 4 kHz) are supplemented.