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针对矢量水听器阵列多重信号分类(MUSIC)算法分辨率低这一缺点,提出了矢量水听器阵列矩阵空域预滤波MUSIC算法.该算法充分利用矩阵空域滤波器输出数据保留阵元域的特性,通过设计一个空域矩阵滤波器对矢量水听器阵列数据进行预处理,抑制阻带扇面的干扰与噪声,且尽量保证通带扇面的信号无失真通过,然后利用MUSIC方位估计进行处理.仿真结果表明:该算法可以抑制通带扇面外干扰与噪声,通带内目标分辨信噪比门限可提高3dB.
Aiming at the shortcomings of low resolution of MUSIC algorithm, a vector hydrophone array matrix spatial filtering pre-filtering MUSIC algorithm is proposed. This algorithm makes full use of the characteristics of matrix spatial filter output data retention array , A spatial domain matrix filter is designed to preprocess the vector hydrophone array data to restrain the interference and noise of the stopband sector and to ensure that the signal of the passband sector passes without distortion as far as possible and then use the MUSIC direction estimation to process.The simulation results The results show that this algorithm can suppress the out-of-band interference and noise in the passband, and the target SNR threshold in the passband can be increased by 3 dB.