This paper compares the expanded to the unexpanded in the performance of direction of arrival estimation at first, and then analyses the beam of different thinned ratio.
比较了该阵列扩展前和扩展后的测向性能，分析了阵列在不同稀疏比下的测向性能以及波束图，可以看出稀疏阵列的波束图的旁瓣明显降低了。
This paper compares the expanded to the unexpanded in the performance of direction of arrival estimation at first, and then analyses the beam of different thinned ratio.
比较了该阵列扩展前和扩展后的测向性能，分析了阵列在不同稀疏比下的测向性能以及波束图，可以看出稀疏阵列的波束图的旁瓣明显降低了。
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