改善被动声呐测距精度的研究

Research on Improving The Ranging Precision of Passive Sonar

三元基阵水平方向被动测距的精度主要取决于噪声到达相邻阵元的相对时延估计的精确程度。本文从波束形成、相关系数的处理、采样频率确定等方面,探讨了提高时延估计精度的对策,并进行了仿真分析。

The ranging precision of the triple arrays depend mainly on the accurate delay estimation, In this paper, the ways to improve the precision of the delay estimation are approached from the respects of the beam forming, the cross-correlation processing and the sampling frequency defining, and the simulation analyzing is carried out.