基于平面旋转的信号二维参数快速跟踪

Fast Tracking 2-D Parameters of Signals Based on Plane Rotation

阵列入射信号时变参数的联合跟踪 ,是我军在现代电子战中进行有效电子防御和进攻时需要解决的首要问题 .本文针对非时变参数估计方法不能适应时变参数跟踪的问题 ,首先讨论了ESPRIT类特征值问题的转化和子空间递推更新的可行性 ,然后以平面旋转 (Givensrotation)为基础推导了关键变量的直接更新关系 ,最后采用多维参数方程并行计算的方式实现了信号二维时变参数的快速跟踪 .计算机模拟结果证实了所述方法的有效性 .

Jointly tracking the time varying parameters of array incident signals is the chief problem that our troops efficiently carry out electronic defense and offense in modern electronic war(EW).Aiming at the problem that the methods to estimate time invariant parameters don′t adapt themselves to the situation to track time varying parameters,this paper has probed into the method to jointly track time varying parameters of array signals based on the plane rotation(Givens rotation).The computer simulation results proved the effectivity of proposed method.