Measurements of heterodyne efficiency for ground-based coherent Doppler lidar using the portable diffuse target

被引：0
|
作者：
Sakaizawa, Daisuke
Nagasawa, Chikao
Mizutani, Kohei
机构：
[1] Tokyo Metropolitan Univ, Grad Sch Elect Engn, Hachioji, Tokyo 1920397, Japan
[2] Natl Inst Informat & Commun Technol, Koganei, Tokyo 1848795, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2006年 / 45卷 / 07期
关键词：
coherent; doppler lidar; infrared laser; heterodyne efficiency; atmospheric refractive index;
D O I：
10.1143/JJAP.45.5981
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The heterodyne efficiency of the coherent Doppler lidar (CDL) is a key parameter in the determination of its operational performance. The spatial coherence of the backscattering signal is affected by the fluctuations in the atmospheric refractive index (caused by atmospheric fluctuations) during the propagation of the laser in the atmosphere. We present the analytical equation that includes atmospheric fluctuations and measure the heterodyne efficiency for a 2.0-mu m CDL. The experimental results are in the good agreement with the simulated predictions and certify the validity of the analytical equation including the atmospheric fluctuations.
引用
收藏
页码：5981 / 5985
页数：5
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