全光纤相干多普勒激光雷达非线性最小二乘风速反演方法及实验研究

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 空间激光信息技术研究中心

	全光纤相干多普勒激光雷达非线性最小二乘风速反演方法及实验研究
	刁伟峰 ; 刘继桥 ; 竹孝鹏 ; 刘源 ; 张鑫 ; 陈卫标
刊名	中国激光
	2015
卷号	42 期号:9 页码:914003
其他题名	Study of All-Fiber Coherent Doppler Lidar Wind Profile Nonlinear Least Square Retrieval Method and Validation Experiment
通讯作者	Diao Weifeng, Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. ; Liu Jiqiao, Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. ; Zhu Xiaopeng, Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. ; Liu Yuan, Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. ; Zhang Xin, Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. ; Chen Weibiao, Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.
中文摘要	研制了一套人眼安全的全光纤相干多普勒激光测风雷达系统。系统采用1550 nm全光纤单频保偏激光器作为激光发射光源,激光器单脉冲能量0.2 mJ,重复频率10 kHz,脉冲半高全宽400 ns,线宽小于1 MHz。激光雷达接收望远镜和扫描器口径100 mm,采用速度方位显示(VAD)扫描模式对不同方位的视线风速进行测量,使用平衡探测器接收回波相干信号,通过1 G/s的模拟数字(AD)采集卡对相干探测信号进行采集,在现场可编程门阵列(FPGA)数字信号处理器中进行1024点快速傅里叶变换(FFT)得到不同距离门回波信号功率谱信息。对于获得的各方位视线风速,研究采用非线性最小二乘法对激光雷达测量的风速剖面矢量进行反演。激光雷达与风廓线雷达测量的风速进行了对比,两者测量的水平风速,风向和竖直风速相关系数分别为0.988,0.941和0.966。
英文摘要	An eye-safe all-fiber coherent Doppler wind lidar system is developed. The system employs an all-fiber single-frequency polarization-maintaining laser as emission light at 1550 nm. The laser has pulse energy of 0.2 mJ, repetition frequency of 10 kHz and pulse full width half maximum of 400 ns, and the linewidth is less than 1 MHz. The aperture of the receiver-telescope and scanner of lidar is 100 mm. The system is operated in velocity azimuth display (VAD) scanning mode for wind speeds measurement at different azimuths. The mixing echo signal is received by balanced detector and sampled by 1 G/s analog to digital (AD) acquisition card, then 1024 points fast Fourier transform (FFT) and spectrum accumulation of echo signal at every range gate are implemented in the field programmable gate array (FPGA) signal processor. For the line of sight wind speeds at each azimuth, the nonlinear least square method is used to retrieve three-dimensional wind field vector measured by lidar. The wind speed measured by lidar is compared with that of wind profile radar. Correlation coefficients of horizontal wind speed, wind direction and vertical wind speed of them are 0.988, 0.941 and 0.966.
收录类别	EI
原文出处	http://www.opticsjournal.net
语种	中文
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.siom.ac.cn/handle/181231/13944]
专题	上海光学精密机械研究所_空间激光信息技术研究中心
作者单位	1.刁伟峰, 中国科学院上海光学精密机械研究所, 中国科学院空间激光信息传输与探测技术重点实验室, 上海 201800, 中国. 2.刘继桥, 中国科学院上海光学精密机械研究所, 中国科学院空间激光信息传输与探测技术重点实验室, 上海 201800, 中国. 3.竹孝鹏, 中国科学院上海光学精密机械研究所, 中国科学院空间激光信息传输与探测技术重点实验室, 上海 201800, 中国. 4.刘源, 中国科学院上海光学精密机械研究所, 中国科学院空间激光信息传输与探测技术重点实验室, 上海 201800, 中国. 5.张鑫, 中国科学院上海光学精密机械研究所, 中国科学院空间激光信息传输与探测技术重点实验室, 上海 201800, 中国. 6.陈卫标, 中国科学院上海光学精密机械研究所, 中国科学院空间激光信息传输与探测技术重点实验室, 上海 201800, 中国.
推荐引用方式 GB/T 7714	刁伟峰,刘继桥,竹孝鹏,等. 全光纤相干多普勒激光雷达非线性最小二乘风速反演方法及实验研究[J]. 中国激光,2015,42(9):914003.
APA	刁伟峰,刘继桥,竹孝鹏,刘源,张鑫,&陈卫标.(2015).全光纤相干多普勒激光雷达非线性最小二乘风速反演方法及实验研究.中国激光,42(9),914003.
MLA	刁伟峰,et al."全光纤相干多普勒激光雷达非线性最小二乘风速反演方法及实验研究".中国激光 42.9(2015):914003.