降维STAP方法的两种基本形式的比较研究

COMPARATIVE STUDY OF TWO BASIC FORMS IN REDUCED-RANK STAP

降维时空自适应处理(Reduced-Rank STAP)已成为机载雷达杂波抑制中的关键技术,各种降维方法也层出不穷,该文指出实际上这些方法都可归于两种基本的形式,即基于广义旁瓣相消器(GSC)结构的形式和从输出信杂噪比(SINR)的特征空间出发的形式。由于基于本质上的不同形式来构成降维转换矩阵,这两类方法体现出不同的性能和降维潜力,该文通过理论分析和有无误差情况下的仿真实验对这两种基本形式进行了比较研究。

Reduced-rank STAP has been a key technology in air-borne radar to cancel the clutter. Several methods have been presented through these years. In this paper, those methods are classified into two basic forms-one is based on the generalized sidelobe canceller(GSC), the other is based on the direct form. The differences in the performances and potential of these two catalogs of methods are compared through theoretical analysis. Simulation results in ideal situations and with limited sample are presented.