小波变换的多频连续波雷达多目标参数估计  

Parameter Estimation of Multi-frequency Continuous Wave radar's Target Based on Wavelet Transform

作　　者：贺东[1] 龙伶敏[2] 王宗友[3] 徐智勇[1] 

机构地区：[1]中国科学院光电技术研究所,四川成都610209 [2]中国科学院研究生院,北京100039 [3]电子科大通信学院,四川成都610054

出　　处：《计算机仿真》2009年第1期58-61,共4页Computer Simulation

摘　　要：在多频连续波雷达多目标参数测量中,目标速度、加速度的准确快速估计对后续测距、测角有重要的意义。小波变换是时频分析的有力工具,能方便、准确和快速分析目标的时频参数。通过检测时频面上的直线,可以准确的得到目标参数。小波变换满足线性叠加,小波变换具有良好的多目标处理性能,对多频连续波雷达多目标信号处理具有良好的适应能力。研究了基于小波变换的雷达多目标速度和加速度估计算法:通过小波变换提取小波脊线,估计出高能量目标参数,然后构造陷波滤波器滤掉该目标信号,通过上述方法逐步估计出剩下目标参数。仿真试验表明了该算法的有效性。In multi -frequency CW radar, estimating velocity accurately is important to acquire their parameters. Acceleration and velocity of radar＇ s target can be detected from time - frequency curve of radar＇ s echo. Wavelet transform is a good skill for time - frequency analysis. It can detect target parameter of time - frequency easily and fast. By detecting beeline perfectly, the parameters of linear signals can be obtained exactly. Wavelet transform is a linear transform and is a good tool for estimating parameters of multi - frequency continuous wave radar＇ s target. This paper presents an algorithm for estimating the acceleration and velocity of multi - frequency Continuous Wave radar based on wavelet transform. Simulation result proves its validity.

关 键 词：多频连续波雷达 加速度 速度估计 小波变换 多目标信号 

分 类 号：TN955[电子电信—信号与信息处理]