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Effect of atmospheric turbulence on laser radar

Effect ofatmospheric turbulence on the performance oflaserradar is investigated in this paper. The characteristic of the Gaussian laser beam propagating parallel to the ground in weak turbu'ence is primarily considered. The light intensity fluctuation, beam shifting and spread caused by the turbulence are calculated. The effect of turbulence on laser pulse width is also researched. And then the effect ofthe atmospheric turbulence on laser radar is concluded.