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由于矢量水听器可以同时获得声场中的声压和质点振速信息,所以利用矢量水听器的组合指向性,可以有效地抑制噪声干扰,提高信号增益。将单矢量水听器的声压与质点振速信息构成传感器阵列,根据平面波声场模型,按照阵列信号处理的原理对其输出的标量场和矢量场信息进行联合处理,即可实现目标方位估计。根据单矢量水听器MUSIC算法的定向原理,建立适应度函数,利用仿生学算法——粒子群算法对单矢量水听器方位估计算法进行优化。
As the vector hydrophone can obtain the sound pressure and the particle velocity information in the sound field at the same time, the combined directivity of the vector hydrophone can effectively suppress the noise and improve the signal gain. According to the plane wave acoustic field model, according to the principle of array signal processing, the output of scalar field and vector field information are processed jointly to realize the target azimuth estimation. According to the directional principle of single vector hydrophone MUSIC, the fitness function is established and the algorithm of particle swarm optimization is used to optimize the azimuth estimation algorithm of single vector hydrophone.