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针对分布式高频地波雷达(HFSWR)的工程应用,研究了基于自适应混合算法(AHA)的阵列无源校正方法.该方法将阵列误差估计问题转化为多元参数的联合估计问题,利用改进的混合算法得到了该优化问题的最优解估计.利用海洋回波校正了分布式高频地波雷达阵列幅相误差之后,将该方法应用到雷达系统的阵列互耦误差校正.仿真和现场实验实测数据的分析表明,该方法对空间谱算法性能的改善十分明显,验证了其有效性.
Aiming at the engineering applications of distributed high frequency ground wave radar (HFSWR), a method of array passive correction based on adaptive hybrid algorithm (AHA) is proposed. This method converts the array error estimation problem into a joint estimation problem of multivariate parameters, The hybrid algorithm is used to get the optimal solution of the optimization problem.After correcting the amplitude and phase error of the distributed high frequency ground wave radar array by using marine echoes, this method is applied to the array mutual coupling error correction of the radar system. The analysis of the experimental data shows that this method can improve the performance of the space spectrum algorithm significantly and validate its effectiveness.