Abstract
In recent years, people have increasingly focused on underwater unmanned systems. Research efforts in communication and detection based on underwater unmanned systems have also become a priority. The working performance of the underwater communication and detection system will be affected not only by the external environmental noise but also by the self-noise generated by the underwater unmanned vehicle(UUV). To ensure the working performance of the underwater communication and detection system, the self-noise characteristics of the underwater unmanned system need to be explored. This paper introduces two main self-noise components and analyzes the self-noise data by Welch Spectral analysis and Time-Frequency analysis for the self-noise of 50kg -class UUV platform, and obtains the noteworthy self-noise characteristics. The analysis results in this paper could be some guidance to suppress the self-noise and thus improve the capability of the underwater communication and detection system.
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