水下超波束形成技术性能仿真研究

Simulation research on the performance of underwater hyper beam forming

基于声呐分裂波束阵列信号处理的特点,对超波束形成(hyper beam forming,HBF)的二维(2D)和三维(3D)算法进行介绍,探讨其工作特性以及影响因子。将HBF技术应用在水下阵列信号处理中,通过仿真计算分析了其分辨能力和分辨特性。研究结果表明:HBF使得主瓣束宽得到锐化,同时旁瓣级也有很大的降低,与常规波束形成技术相比,其分辨能力有较大提高,是一种有广阔应用前景的水下阵列信号处理新方法。

According to the characteristic of split beam, the hyper beam forming （HBF） technique based on 2-D and 3-D is introduced, and its operating characteristic and influencing factors are researched. With the application on underwater array signal processing, the target resolution characteristic of HBF technique is analyzed. And the results show that the beam width is reduced and the side lobe is suppressed via HBF technique,which has better resolution performance and wider application prospect, compared with the conventional beam forming technique.