摘要
针对常规波束形成处理下的平面点圆声基阵的性能提升需求,对平面点圆声基阵的波束形成方法进行描述,提出平面点圆声基阵的阵型布置及性能评价标准,并对平面点圆声基阵的阵型进行优化与仿真分析。相比于常规的点圆声基阵结构,在常规波束形成下,增加斜边的点圆声基阵点圆声基阵斜边阵元,可以较大幅度地降低系统的旁瓣级,且点圆声基阵斜边位于点圆声基阵外侧可以较大幅度提升系统整体性能,在设计时需综合考虑点圆声基阵在整个工作频段上的性能,以决定斜边阵元位置。
This paper describes the beamforming method of the planar point circular acoustic array in response to the performance improvement requirements of the planar point circular acoustic array under the conventional beamforming process. The formation layout and performance evaluation standard of the flat point circular acoustic array are proposed, and the formation of the flat point circular acoustic array is optimized and simulated. According to the research results, compared with the conventional point circular acoustic array structure, under conventional beamforming, adding hydrophones on the hypotenuse can greatly reduce the side lobe level of the system, and adding hydrophones on the outside can greatly reduce the to improve the overall performance of the system, the performance of the acoustic matrix over the entire working frequency band should be considered comprehensively during design to determine the position of the hydrophone.
作者
赵宇佳
ZHAO Yujia(The Navy Deputation in Residence of Hangzhou,Hangzhou 310023,China)
出处
《电声技术》
2022年第9期9-13,共5页
Audio Engineering
关键词
平面声基阵
波束形成
旁瓣级
指向性指数
束宽
planar acoustic array
beamforming
sidelobe
directivity index
beamwidth
作者简介
赵宇佳(1993-),男,本科,助理工程师,研究方向为航空搜潜技术。
