深弹自导过程的波束相关处理仿真

Simulation on Beam Correlation Processing in Homing Process of Depth Charge

摘要:

深弹精确自导受测向测距精度影响，为探究自导全过程算法，采用波束域相关处理方法，开展深弹自导过程中自导算法的测向测距性能研究。首先，对方法的可行性进行分析，确定噪声背景下有效混响抑制方法。进而，假设深弹运动态势和弹目的初始位置，根据几何态势推算出运动过程中的弹目位置和目标俯仰角，并加入随机误差模拟弹体旋转。最后，仿真计算自导全过程目标方位和距离。目标方位结果与几何值基本吻合，验证了波束域相关处理方法正确。

关键词:自导;测向测距;波束域相关

Abstract:

With the fact that the precision homing of depth charge is influenced by the accuracy of angle and range estimation，and in order to study the whole-process algorithm of homing，we adopted beam domain correlation to conduct the angle and range estimation performance study of homing algorithm in the homing process of depth charge. First，we analyzed the feasibility of the method，and confirmed the effective reverberation suppression ways under the background of noise. Then assuming the moving trace of depth charge and its initial location relative to the target，the azimuth between charge and target and pitch angle of the target during the motion process are calculated according to geometric situation，and the charge rotation is simulated by adding some random errors. Finally，the azimuth and distance of target in the whole homing process are simulated and calculated. The results are basically consistent with the originally setting parameters，which verifies the correctness of beam domain correlation method.

Key words:homing process;direction finding and ranging;beam domain correlation