基于干扰对消的测向方法

分析了自适应滤波和超分辨处理的内在联系，提出了具有自适应抗有源干扰能力的测向方法：基于干扰对消的测向方法－约束最小输出功率估计器和基于线阵输出相关矩阵对消的超分辨测向处理方法。首先，在理想情况下估计无源状态下的线阵输出的相关矩阵和有源状态下线阵输出的相关矩阵；其次，实施两种状态下的相关矩阵的对消运算，对消掉有源干扰和噪声，剩余的只是信号的相关矩阵；然后，再对该矩阵做超分辨处理。这种方法具有源干扰、

Direction Finding Based on Cancelling Jammers

After having made a study of the relationship between adaptive filtering and high resolution direction finding. A technique of direction finding based on cancelling jammers which includes restricted minimum output power estimator and direction finding based on subtraction ofcorrelation matrices is presented. First, the correlation matrices of the the linear army output inpassive and active cases are estimated under ideal conditions. Then the jammers and noises arecancelled after doing subtraction of the two correlation matrices. And only signals are preserved.At last,the methods of high resolution direction finding are used to the correlation matrix of signals. The methods presented have some advantages. They are able to cancel jammers,detect signals with lower signal-to-noise rate and prevent saturation of linear array. The computer simulation results support the proposed methods.