介绍单矢量水听器的基本知识，单矢量水听器信号处理基础理论及方位估计性能还有一些试验数据分析-Introduced a single vector hydrophone in basic knowledge, a single vector hydrophone based on signal processing theory and the performance of DOA estimation and some test data analysis

介绍光纤水听器和矢量水听器的原理、性能等，并给出各自的优缺点-Introduce fiber-optic hydrophone and vector hydrophone principle, performance, etc., and give their advantages and disadvantages