矢量阵两类阵处理方法研究

Research on Two Array Processing Methods for Vector Sensor Array

矢量阵扩展法阵处理实现了矢量阵与声压阵在形式上的统一,但在模型上对于振速对阵列性能影响的物理意义不够明晰。针对这一问题,分析扩展法阵列数据协方差矩阵构成,通过分块矩阵方法推导常规Bartlett波束形成方位谱表达式,实现了与矢量阵组合法阵处理的形式统一,使其具有清晰的物理含义,分析了扩展法不具有扩展孔径增益的原因,计算机仿真和湖试试验验证了理论分析结果。

For signal processing of an acoustic vector sensor array（AVSA）,the extended method which keeps the coherence of AVSA and acoustic pressure sensor array can not show the particle velocity information obviously.Aimed at this problem,the AVSA datum covariance matrix of extended method was analyzed.The Bartlett bearing spectrum was derived.By using block matrix,the AVSA extended method can be coherent with combined method.The numerical simulation and lake experiment verify the theoretical results.