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为解决高分辨阵列测向问题,讨论了空间信号频率/方向及阵列模型误差联合估计的全局优化算法,改变了已有迭代算法可能只收敛于局部最优点的弊端,保证算法收敛于全局最优点。计算机模拟结果表明:该算法能够同时对空间到达信号频率/方向及阵列模型误差进行联合估计,并具有较高的分辨率。
In order to solve the high-resolution array direction finding problem, the global optimization algorithm of joint estimation of spatial signal frequency / direction and array model error is discussed. The disadvantages of existing iterative algorithms that may only converge to local optimal points are changed, and the algorithm converges to the global optimum point . Computer simulation results show that the proposed algorithm can simultaneously estimate the spatial frequency of arrival signal and the array model error with high resolution.