Analysis of saturation signal correction of the troposphere lidar  

作　　者：刘智深 李志刚 刘秉义 李荣忠 

机构地区：[1]Key Laboratory of Ocean Remote Sensing,Ministry of Education of China,Ocean University of China

出　　处：《Chinese Optics Letters》2009年第11期1051-1054,共4页中国光学快报（英文版）

基　　金：supported bythe National Natural Science Foundation of China under Grant Nos.60578038 and 40427001

摘　　要：Usually, lidar detection systems are optimized for the measurement of the low intensity signal using the photon counting technique, but this approach results in the nonlinear signal response for the higher intensity signal. The problem is successfully solved by the combination of analog-to-digital （AD） and photon- counting （PC） detection. The optimized processing procedure of the signal combination of AD and PC is described, and the corrected result is analyzed and compared with the results by the dealt-time correction method. In this way, the accuracy of wind and aerosol measurement in the nonlinear range is improved. In addition, the signal-to-noise ratios （SNRs） of the two detection methods of AD and PC are compared in the overall dynamic range of signal for the performance analysis.Usually, lidar detection systems are optimized for the measurement of the low intensity signal using the photon counting technique, but this approach results in the nonlinear signal response for the higher intensity signal. The problem is successfully solved by the combination of analog-to-digital （AD） and photon- counting （PC） detection. The optimized processing procedure of the signal combination of AD and PC is described, and the corrected result is analyzed and compared with the results by the dealt-time correction method. In this way, the accuracy of wind and aerosol measurement in the nonlinear range is improved. In addition, the signal-to-noise ratios （SNRs） of the two detection methods of AD and PC are compared in the overall dynamic range of signal for the performance analysis.

关 键 词：ATMOSPHERICS Optical radar Signal to noise ratio 

分 类 号：TN959.98[电子电信—信号与信息处理]