Laser Doppler velocimeter for vehicle application with improved signal-to-noise ratio

被引：13

作者：

Nie Xiaoming ^{[1
]}

Zhou Jian ^{[1
]}

Long Xingwu ^{[1
]}

机构：

[1] Natl Univ Def Technol, Dept Optoelect Engn, Coll Optoelect Sci & Engn, Changsha, Hunan, Peoples R China

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2014年 / 116卷 / 03期

关键词：

14;

D O I：

10.1007/s00340-013-5746-1

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Laser Doppler velocimeter (LDV) with improved signal-to-noise ratio (SNR) is presented to measure the vehicle velocity. A novel optical structure named split-reuse type configuration is developed to improve the SNR of LDV. Reference measurements were provided by measuring the outer surface of a precision single-axis turntable. Under these conditions, the measurement uncertainty of the instrument is better than 0.56 % with 95 % confidence interval. The split-reuse type LDV has been tested with an automobile on the open road, and the measurement results are comparing with the results of a precision spatial filter velocimeter, which verify the feasibility of split-reuse type LDV to measure the self-velocity of vehicle.

引用

页码：637 / 641

页数：5