中文摘要：

遗传算法在声源方位估计中的应用已有很深入的研究，然而在实际的工程应用中，阵元数量及如何用较少的阵元数得到较好的波束性能一直是人们所关心的问题。本文利用遗传算法及声矢量阵P-V互谱的抗噪能力，给出了基于遗传算法的声矢量阵虚拟阵元波束形成方法。根据实际阵元接收的数据，估计虚拟阵元上的接收数据，使基阵孔径在虚拟意义上得到扩大，从而实现高指向性窄波束。计算机仿真和湖试实验数据处理结果表明，虚拟后比虚拟前波束宽度锐化了21°左右。

英文摘要：

Genetic algorithm has been studied deeply in source estimation of DOA. But in practical applications, people force on the problem that is the number of array. In this paper, the virtual array beam forming algorithm based on genetic algorithm is present by using genetic algorithm and the ability of acoustic vector-senor array P-V cross-spectrum. The output data of virtual sensors are estimated from the output of physical array. The aperture of total array is broadened in the virtual sense and high directivity narrow beam is realized. The simulation and numerical results demonstrate that a sharper main beam can be obtained using the virtual array beam forming algorithm.