The retrieval of wind speed with direct detection Doppler wind lidar is performed by detecting the atmospheric back-scattering signal and computing its Doppler shift.The feasibility of applying atmospheric back-scattering signal in detection of visibility and cloud base height is analyzed.The Klett method is chosen to retrieve atmosphere visibility,and the segmentaion calculation process for cloud base height is proposed.The program based on the algorithm mentioned above is employed to process the lidar data.By comparing with the results in field test,it comes to the conclusion that the test data match the theortical analysis well.
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熊兴隆,闫朴,蒋立辉,庄子波.测风激光雷达应用于机场能见度及云底高探测[J].激光与红外,2010,40(8):817~820 XIONG Xing-long, YAN Pu, JIANG Li-hui, ZHUANG Zi-bo. Application of wind lidar in detection of the airport′s visibility and cloud base height[J]. LASER & INFRARED,2010,40(8):817~820