基于快速子空间分解的组滤波自适应杂波抑制算法

针对部分相关，中等起伏目标的最佳检测，本文提出了基于快速空间分解的组滤波自适应杂波抑制算法，由于采用了快速了空间分解方法，明显降低了算法运算量而使其易于实时实现，文中所采用的最小二乘同组滤波相结合的方法使得即使在非平稳的条件下也要以获得良好的杂波谱估计，进而可以有针对性地完成特定多普勒域的目标提取，实现在变化杂波条件下的有效杂波抑制和目标检测。

Adaptive Clutter Suppression Algorithm of Band Filtering Based on Fast Subspace Decompositon

For optimum detection of moderately fluctuating radar targets,an adaptive cluttersuppression algorithm of band filtering based on fast subspace decomposition is presented in thispaper. Owing to the adoption of the technique of fast subspace decomPOsition,the computationalrequirement of the algorithm is obviously decreased and is favorable to be implemented on realtime. By the combination of Least Nquares (LS) and Band Filtering techniques,clutter spectrum estimation is obtained first with good property,then the detection of targets in special Doppler scopeis carried out. By use of the algorithm, effective clutter suppression and targets detection areachieved in varying clutter background.