CAJ | 학술논문

文利用最优空时二维处理器权矩阵的低秩特性，将空时最优滤波器分解为多对空域滤波器与时域滤波器组，从而提出了一种基于非正交基的降维自适应算法以抑制机载雷达所面临的地杂波。与最优空时二维处理器相比，本文所提方法通过降维处理有效避免了高维协方差矩阵的估计与求逆运算，大大降低了系统的计算复杂度和训练样本需求，有利于工程实现。
문이용최우공시이유처리기권구진적저질특성，장공시최우려파기분해위다대공역려파기여시역려파기조，종이제출료일충기우비정교기적강유자괄응산법이억제궤재뢰체소면림적지잡파。여최우공시이유처리기상비，본문소제방법통과강유처리유효피면료고유협방차구진적고계여구역운산，대대강저료계통적계산복잡도화훈련양본수구，유리우공정실현。
Space-time optimal filter can be decomposed to multi-pairs of space filter and time-filter banks by u-tilizing low-rank feature of 2D optimal space-time adaptive processing (STAP) weight matrix;and then a dimen-sion-reduced STAP algorithm for airborne radar to suppress the ground clutter is introduced. Comparing with opti-mal STAP, the algorithm presented can effectively eliminate high-dimensional covariance estimation and inversion computation, which can significantly reduce computational complexity and requirement to training samples, and is advantage to engineering implementation.