The Application of Edge Technique in Wind Lidar
The principle of single-edge technique and double-edge technique in the application of wind lidar was analyzed in detail, and the sensitivity and error of velocity measurement were discussed contrastively. The principle of single-edge technique is to compare the transmission of high resolution filter in two different frequencies. Double-edge technique lies in deducing Doppler shift as well as wind velocity value by comparing the intensity difference between two filters’ output signal. And Mie and Rayleigh backscattering signals can be measured separately via selecting special working point. The analysis indicates that the velocity measurement sensitivity of double-edge technique is twice as much as that of single-edge technique in the same measurement condition. Although signal beam splitting of double-edge technique impacts SNR (signal-to-noise ratio), the velocity measurement error is still higher than that of single-edge technique.
Wind lidar Edge technique F-P filter Sensitivity Error
HUANG He-song WANG Ji-qiang XUE Lin LIU Kui
College of Information and Electric Engineering, Shandong University of Science and Technology,Qingd Laser Research Institute of Shandong Academy of Sciences, Jinan Shandong, China
国际会议
2011 IEEE CIE International Conference on Radar(2011年IEEE国际雷达会议RADAR 2011)
成都
英文
1135-1138
2011-10-24（万方平台首次上网日期，不代表论文的发表时间）