Underwater Acoustic Channel Denoising Algorithm Based on Least Mean Square Algorithm

2018 4th International Conference on Environmental Science and Material Application

生态环境科学;材料科学

Cheng, Yuan^1 ; Gao, Hui^1

School of Software Engineering State, Key Laboratory of Networking and Switching Technology, University of Posts and Telecommunications, Beijing, China^1

关键词: Background noise;    Communication process;    De-noising algorithm;    High transmission;    Least mean square algorithms;    Least mean square error;    Underwater acoustic channels;    Underwater acoustic communications;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/252/4/042091/pdf
DOI  :  10.1088/1755-1315/252/4/042091

来源: IOP

【 摘 要 】

In order to decrease the high transmission error rate caused by background noise and impulse noise during underwater acoustic communication, this paper considers the influence of noise during the communication process based on the frequency division multiplexing system model. A filter is carried out to estimate the real-time noise, which is implemented by the least mean square error algorithm and is improved according to the characteristics of short duration and high energy of impulse noise. Finally, the effectiveness of the algorithm is verified by computer simulation.