Coherent Doppler lidar wind retrieval for a typhoon based on the genetic simulated annealing algorithm

被引：0
|
作者：
Liu, Zhen [1 ,2 ]
Yuan, Lucheng [1 ]
Tang, Jie [3 ]
Zhang, Yunpeng [1 ]
Liu, Jiqiao [1 ]
Zhu, Xiaopeng [1 ,2 ]
Yang, Juxin [1 ]
Shi, Wei [1 ]
Chen, Weibiao [1 ,2 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Aerosp Laser Technol & Syst Dept, Shanghai 201800, Peoples R China
[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
[3] China Meteorol Adm, Shanghai Typhoon Inst, Shanghai 200030, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2024年 / 22卷 / 04期
基金：
中国国家自然科学基金;
关键词：
coherent Doppler lidar; three-dimensional wind field retrieval; genetic simulated annealing algorithm; spectrum estimation; typhoon; VECTOR ESTIMATION; PACIFIC;
D O I：
10.3788/COL202422.040101
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A method of spectrum estimation based on the genetic simulated annealing (GSA) algorithm is proposed, which is applied to retrieve the three-dimensional wind field of typhoon Nangka observed by our research group. Compared to the genetic algorithm (GA), the GSA algorithm not only extends the detection range and guarantees the accuracy of retrieval results but also demonstrates a faster retrieval speed. Experimental results indicate that both the GA and GSA algorithms can enhance the detection range by 35% more than the least squares method. However, the convergence speed of the GSA algorithm is 17 times faster than that of the GA, which is more beneficial for real-time data processing.
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页数：7
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