空时自适应处理（STAP）实现的主要障碍之一是计算量巨大，现有文献中的降维（降秩）方法均是离线的，本文研究了在线降维方法.在考察了STAP中不同多普勒通道间杂波的变化后，提出了实现系统调控自由度自适应——结构自适应的准则和方法，这一方法在性能损失甚微的前提下，可明显的减少STAP的计算量.%Rank reduction methods for STAP in existence are all off-line.We are cognizant of that a rank reduction method should be on-line since the clutter is variable with target location.An implementation of adaption for DOF (degree of freedom) in force,called structure adaption for STAP is presented.It is evident that structure adaption can reduce the large computational requirements of STAP that prohibit full-dimensional processing in real-time despite the minor degradation in performance.
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机译：Brachiaria brizantha（Hochst。Ex A. Rich。）Stapf cv。的生产力。 Marandu在不同的农业农业牧草系统结构安排下，产生了Brachiaria brizantha（Hochst。Ex A. Rich。）Stapf cv。桉树在农木牧草系统上不同间距下的Marandu
