基于参数引导的对宽带SAR的类杂波干扰

The Similar Clutter’s Jamming to Wideband SAR Based on Leading of Parameters

宽带高分辩SAR背景杂波对SAR目标检测和识别可造成严重影响。该文针对SAR的这种弱点,在匹配干扰的思路下,提出了一种新的时、频、多普勒域多维匹配覆盖的类杂波干扰。文中研究了用零记忆非线性(ZMNL)变换法模拟生成相关统计分布杂波。由于传统的数字储频转发式的干扰方式不适合宽带信号,该文研究了参数引导的宽带类杂波干扰产生机理和窄带拼接的宽带干扰信号实现方法。最后通过仿真实验验证了该方法对于宽带SAR的干扰有效性。

Wideband-high-resolution SAR background clutters affect the target detection and classification seriously. Aiming at SAR＇s weakness, the paper puts forward a new matching jamming, which is time, frequency and Doppler fields multidimensional-matching-overcast similar clutter＇s jamming. In the paper, generation of the correlated statistical clutter vectors using zero memory nonlinearity method is developed. Because of the traditional method of using digital frequency memorizer is inapplicable to wideband SAR jamming, the jamming theory based on the leading of parameters and narrowband signals pieceing together technology on wideband jamming realization is researched .Finally, through the Matlab emluator, the paper validates that the method is effectual to jam the wideband SAR.