Nowadays, the mainstream of far field beam smoothing technology adopted by foreign high power laser drivers is smoothing by spectral dispersion (SSD) based upon sinusoidal frequency modulation.
We show how to optimize a spatially smoothing adaptive array such that the white noise power in the array output, or the sidelobe levels of the adaptive array beam pattern are reduced.
我们指出如何优化空间平滑自适应阵列使得白噪声功率或者阵列的副瓣尽量降低。
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The result power spectrum analyses of focal spot show that the smoothing effect is caused by middle and high frequency intensity suppression.