声呐信号测向技术仿真研究及实现

Simulation and implementation of sonar signal bearing estimation

方位估计是声呐信号处理中的一个核心问题．本文基于分裂波束原理，针对声呐系统中常用的单频CW信号和双曲调频HFM信号，给出了CW信号的互谱法定向和HFM信号的正交相关法定向的方法，计算机仿真实验分析了本文方法的精确性．

Bearing is an important part in sonar signal processing. Based on the split beam theory, this paper presents mutual spectrum method of bearing for CW signal, and orthogonal correlation approach for HFM signal. Computer simulation have checked the accuracy of the above methods.