A METHOD OF MEASURING CORRELATION BETWEEN SIGNAL PULSES FOR STUDY OF TIME-VARIANT CHARACTERISTIES OF UNDERWATER SOUND CHANNEL

A method of measuring correlation between signal pulses for the investigation of random time-variant properties of underwater sound channel is presented in this paper. The expression of correlation function between periodic pulses propagating in underwater sound channel is derived. The measured results of the correlation coeficient of the received signal pulses in the transmission channel and in the fixed-target reflection channel are given. A primary analysis of measured results and channel model is made.