Chinese Optics Letters, 2017, 15 (2): 020101, Published Online: Jul. 26, 2018
Retrieval of C n 2 profile from differential column image motion lidar using the regularization method
010.1330 Atmospheric turbulence 100.3190 Inverse problems 010.3640 Lidar 010.1290 Atmospheric optics
Abstract
We develop a regularization-based algorithm for reconstructing the C n 2 profile using the profile of Fried’s transverse coherent length (r 0 ) of differential column image motion (DCIM) lidar. This algorithm consists of fitting the set of measured data to a spline function and a two-stage inversion method based on regularized least squares QR-factorization (LSQR) in combination with an adaptive selection method. The performance of this algorithm is analyzed by a simulated profile generated from the HV 5 / 7 model and experimental DCIM lidar data. Both the simulation and experiment support the presented approach. It is shown that the algorithm can be applied to estimate a reliable C n 2 profile from DCIM lidar.
Zhi Cheng, Fengfu Tan, Xu Jing, Feng He, Lai’an Qin, Zaihong Hou. Retrieval of