驻区效应对激光大气传输的影响
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摘要: 对聚焦、转动束的驻区效应作了理论分析，并用激光大气传输四维程序作了校算。理论分析与程序计算结果均表明：在许多情况下，驻区效应的影响并不严重， 原因是驻区长度上的激光束热畸变数不大，热畸变扩束半径小于衍射扩束半径。Abstract: The theoretical results are presented for the stagnation zone effect of the slewing laser beam, for the examine，the numerical calculation using 4D code of the laser atmosphere propagation are proceeded. The theory analysis and the results computed by 4D code show that in many cases the influences of the stagnation zone effect are not important because in those cases the beam spreading radius induced by thermal distortion in the stagnation zone is smaller than that induced by the diffraction effect.
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