巴特沃斯滤波器在雷达目标航迹处理中的应用

摘要

对雷达目标航迹数据进行在线滤波处理,从而提高雷达测量数据的精度,具有十分重要的意义.提出一种利用巴特沃斯(Butterworth)滤波器实现雷达目标航迹在线平滑处理的方法.分析雷达目标信号的频谱特性,设计并计算出滤波器的参数,将雷达信号的噪声信号放大处理后进行在线滤波.仿真结果表明,本方法具有很好的滤波效果,并且计算迭代量小.%It is of great importance to improve the precision of radar measure data by filtering radar target track online, In this paper, the method of smooth-processing the track of radar target on-line is presented. Using the Butterworth filter, the spectrum of radar target signal is analyzed, the parameter of the filter is designed and calculated, then the signal of radar is filtered after the noise of radar signal being magnified. Simulation results the good effective and the little iterative calculation of the algorithm.