相控阵雷达动平台波束稳定建模与仿真分析

Modeling and Simulation Analysis of Beam Stability of Phased Array Radar on a Moving Platform

本文通过对动平台上相控阵雷达的波束指向进行建模,分析动平台航向角、横摇角及纵摇角改变的对雷达波束指向的影响。利用姿态转换矩阵进行坐标变换,提出动平台下相控阵雷达波束指向稳定算法。通过蒙特卡洛仿真分析,验证了本文所提出的算法的有效性,稳定后的误差小于0.3°,满足实际使用需求。

By modeling the beam pointing of a phased array radar on a moving platform,in this paper,the influence of the change of heading angle,transverse rocking angle and longitudinal rocking angle on the radar beam pointing was analyzed.Coordinate transformation was carried out by the attitude transformation matrix,and a beam pointing stabilization algorithm was proposed for the phased array radar on the moving platform.Through Monte Carlo simulation analysis,the effectiveness of the algorithm proposed in this paper was verified,and the error was less than 0.3°after stabilization,which meets the practical use requirements.