摘要
在小波变换和 Mahalanobis距离的基础上 ,提出了一种雷达目标识别方法。首先 ,对雷达回波信号进行小波变换 ,得到目标散射中心在一维距离像中的位置和峰值 ,从而得到一组由位置和峰值构成的点列。然后计算这些点的 Mahalanobis距离 ,得到目标识别的特征向量 ,由此进行目标识别。仿真实验结果表明 :该方法具有较高目标识别能力和强抗干扰能力。
A recognition method of radar target is presented based on wavelet transform and Mahalanobis range in this paper. First, after computing wavelet transform of radar echo, target scattering centers are obtained in range profile. Then the target characteristics are extracted by computing Mahalanobis range of every scattering center. The experiments of recognition using the data of three kinds of aircraft models were performed and demonstrated that the method has high recognition rate and low sensitivity to noise.
出处
《现代雷达》
CSCD
北大核心
2001年第4期34-36,共3页
Modern Radar
基金
国防科技预研基金项目 (编号 :99J1
4.1JB2 0 0 4)
