基于多信号参数融合的目标测向分析

Target Direction Finding Analysis Based on Multi Signal Parameter Fusion

对目标的测向主要是基于单参数的比幅测向原理,但无论采用哪一种单参数进行测向,测向目标位置的收敛时间和定位精度都无法满足越来越快的运用需求。文章介绍了方位角与信号重复频率融合和方位角与相位变化率融合的方法对目标进行测向,给出了方位角与信号重复频率融合和方位角与相位变化率融合的原理和方法。通过仿真分析表明,该融合测向适用范围广,测向角度误差小,在测向精度上远远优于任何单参数测向的方法。

The target direction finding is mainly based on the single parameter amplitude comparison direction finding principle,but no matter which single parameter is used for direction finding,the convergence time and positioning accuracy of the DF target position can not meet the faster and faster application requirements.In this paper,the methods of azimuth and signal repetition frequency fusion and azimuth and phase change rate fusion are introduced to detect the direction of the target.The principles and methods of azimuth and signal repetition frequency fusion and azimuth and phase change rate fusion are given.The simulation analysis shows that the fusion DF has wide application range and small DF angle error,and is far better than any single parameter DF method in DF accuracy.