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分析了采用线阵进行来波方向估计时所带来的阵列流型模糊问题,提出了一种基于任意整数倍间距排列(即间距为λ/2的任意整数倍)的线阵阵列流型维数的计算方法.该方法可以给出任意整数倍间距排列的线阵阵列流型的维数,及多个信源入射到阵列时可能产生的所有模糊角度.仿真结果验证了该方法的正确性和有效性.
The problem of array flow pattern ambiguity brought by using linear array to estimate the arrival direction of wave is analyzed. A flow pattern based on arbitrary integer multiples of pitch (ie, an arbitrary integer multiple of λ / 2) is proposed This method can give the dimension of the linear array array array with any integer number of pitches and all possible fuzzy angles when multiple sources are incident on the array.The simulation results verify the correctness of the method And effectiveness.