【摘要】 阵列雷达通道之间的幅相不一致严重影响了阵列信号处理的性能,解决的方法是在接收通道中加入校正滤波器。校正滤波器的系数通常需要矩阵求逆获得,但是直接求逆存在着矩阵"病态"问题,导致无解,尽管可以采用伪逆法求解,但仍然存在解的不稳定问题。文中提出了正则化方法来解决系数矩阵的"病态"问题,分析了正则化方法的应用条件,给出正则参数的求解方法。仿真结果表明,在矩阵病态的情况下,该方法仍然能得到稳定、较好的校正结果,是可行有效的。更多还原

【Abstract】 Array radar channel between the amplitude and phase inconsistency seriously degrade the performance of the array signal processing,the solution is added a calibration filter in the receiving channel.Calibration filter coefficients usually requires matrix inversion to obtain.Direct inversion,however,there is the matrix " Ill " problem,leading to no solution,despite the use of the generalized inverse method to solve,but the solution still exist problems of instability.A regularization method to solve the coefficient matrix of the "Ill-conditioned" is presented,and a regularization parameter solving method is given.Simulation results show that in the case of " Ill-conditioned",the method is still be able to obtain a stable,good calibration result,it is feasible and effective.更多还原