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由于单个声压水听器无指向性,不能用来估计目标的方位,因此提出了一种基于单个矢量水听器的高分辨MUSIC算法。该矢量水听器由3个空间轴向垂直的振速水听器和1个声压水听器构成,充分利用矢量水听器的阵列流形特性,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,构造了单矢量水听器MUSIC算法。仿真结果显示,将MUSIC算法应用于单矢量水听器可以得到比Capon算法更尖锐的指向性波束,更低的旁瓣,大大提高了对目标的分辨能力,在高信噪比条件下能实现对目标高分辨的方位估计。
Because a single sound pressure hydrophone is omnidirectional and can not be used to estimate the orientation of a target, a high-resolution MUSIC algorithm based on a single vector hydrophone is proposed. The vector hydrophone consists of three space-axis vertical vibrating hydrophone and a sound pressure hydrophone to make full use of the array hydrophone characteristics of vector hydrophone, according to the principle of array signal processing of its output scalar Field and vector field information joint processing, constructed a single vector hydrophone MUSIC algorithm. The simulation results show that the MUSIC algorithm can be applied to a single vector hydrophone can be more sharp than the Capon algorithm directivity beam, lower sidelobes, greatly improving the resolution of the target, in high signal-to-noise conditions can be achieved High-resolution target orientation estimation.