矢量传感器的复声强法定向技术研究

矢量传感器可以空间共点、同步测量声压与质点振速的各正交分量。为了对水下目标进行定位，基于声压与振速联合信号处理的理论，研究了复声强法对水下目标信号的定向技术，并使用概率统计和直方图的理论对目标的方位角和俯仰角值进行了估计，在线谱分量存在的低频段对估计角度进行了概率统计，较好地解决了左右舷的分辨问题．实现目标的全空间无模糊定向。另外，通过计算机仿真验证了该方法中提出的定向算法。

Study of Direction Estimation Based on Intensity Measurement Using Acoustic Vector Sensor

The pressure and three orthogonal components of the particle velocity can be co-located and measured simultaneously. After studying the theory of combined signal processing with acoustic pressure and particle velocity, a method of direction estimation underwater, which is based on intensity measurement using an acoustic vector sensor, is presented. In the low frequency field with kinds of line-spectra, azimuth angle estimation is achieved based on the probability density statistics and bar graph approach. I...