A high-precision channel modeling method considering sea undulations

Underwater acoustic channel models provide a tool for predicting the performance of communication systems before deployment, and are thus essential for system design. This paper proposes a high-precision channel modeling method considering the fluctuation of the sea surface. Based on the analysis of the influence of sea surface fluctuations on the multipath delay and Doppler, combined with the traditional time-varying channel model, high-precision underwater acoustic communication channel modeling is achieved without increasing the amount of calculation. The Wave Analysis for Fatigue and Oceanography (W AFO) model was used to simulate sea surface fluctuations to verify the feasibility of this method.