A Method of Calculating Time-varying Characteristics Based on Sparse Channel Estimation for Underwater Acoustic Communications

摘要

A method calculating time-varying characteristics of dominant components for underwater channel is proposed. Conventional methods investigate time-varying characteristics using recursive transmission of probe signals with guard intervals. The proposed method obtains time-varying characteristics from the equivalent channel that affects the performance of communication directly using channel estimation and CFAR detector. Experimental results show that the proposed method can track and measure the dominant components.