首次将小渡分析的方法应用到SAR射频干扰抑制中．提出了基于小波包分析的自适应干扰抑制方法。利用小波包变换的多分辨分析能力和良好的时频局部化特性，自适应地提取干扰特征向量，实现了SAR射频干扰抑制。克服了陷渡滤波法中陷渡器设计难以随射频干扰变化而自适应变化以及参数化干扰抑制方法对干扰拟合不够精确的缺陷。通过干扰抑制仿真实验．验证了方法的正确性和有效性。

For the first time, a wavelet analysis method is applied to SAR RFI suppression in this paper, and an adaptive interference suppression method based on wavelet pack analysis is suggested, which utilizes the multi-resolution analysis and the fine time-frequency localizing characteristic of wavelet pack transform to picking up interference characteristic vectors adaptively to achieve SAR RFI suppression. The method overcomes such shortcomings as filtering can't adjust itself with the change of interference in notch filtering method and interference can't be simulated accurately by parametric means. By making interference suppression simulation experiments, the correctness and efficiency of the method is verified. [

TN957.52