基于Janus配置的三光束激光多普勒测速仪

邬战军; 韩凤山; 范哲; 林志立

doi:doi:10.3788/lop50.071404

激光与光电子学进展, 2013, 50 (7): 071404, 网络出版: 2013-07-01

基于Janus配置的三光束激光多普勒测速仪

Triple-Beam Laser Doppler Velocimeter Based on Janus Configuration

论文大纲

邬战军 ^*韩凤山范哲林志立

作者单位

北京航空航天大学仪器科学与光电工程学院, 北京 100083

激光技术相干光学相干激光雷达多普勒测速三光束 laser technique coherence optics coherent lidar Doppler velocimetry triple-beam

摘要

为了可以同时测量车辆的纵向和横向速度，提出了一种基于Janus配置的三光束激光多普勒测速仪(TLDV)。给出了TLDV的测速模型和测速公式，对其测速的相对误差进行了理论分析和数值仿真。结果表明：TLDV对车辆颠簸、摇晃不敏感，测速误差只受上下颠簸角的影响，与左右摇晃角无关；当车辆上下起伏速度一定时，测速误差随着上下颠簸角的增大而增大，当上下起伏速度为0.2 m/s，颠簸角为10°时，测速误差小于0.3%。最后，给出了一种TLDV光束方向的最佳配置方案。

Abstract

In order to measure the longitudinal and lateral speeds of a vehicle simultaneously, a triple-beam laser Doppler velocimeter (TLDV) system based on Janus configuration is presented. The model and the expression of speed measurement are given. According to the analysis and simulation, some results can be obtained as follows: firstly, TLDV is less sensitive to bump and shake; secondly, the relative speed measurement error is affected only by the bump angle and has no relationship with the shake angle; thirdly, the relative error is lower than 0.3% when the bump angle is 10° and the velocity is 0.2 m/s. Last of all, a kind of optimal configuration of TLDV beams is given.

参考文献

[1] 凌永成, 赵炬. 车用多普勒雷达测速系统若干参数的选择[J]. 沈阳大学学报,2007, 14(4): 35-37.

Ling Yongcheng, Zhao Ju. The selection of parameters on Doppler-radar speed-monitoring system for vehicles [J]. J Shenyang University, 2007, 14(4): 35-37.

[2] H Guo, Z Wu, B Xin, et al.. Vehicle velocities estimation based on mixed EKF [C]. Chinese Control and Decision Conference, 2011. 2030-2035.

[3] 王纪强, 张春熹, 冯迪, 等. 颠簸摇摆引起的车辆测速误差分析[J]. 光学技术, 2009, 35(4): 555-557.

Wang Jiqiang, Zhang Chunxi, Feng Di, et al.. Laser velocimetry for vehicle based on Janus configuration [J]. Optical Technique, 2009, 35(4): 555-557.

[4] 周健, 龙兴武. 基于Janus配置的激光多普勒测速仪[J]. 光电子·激光, 2011, 22(2): 266-271.

Zhou Jian, Long Xingwu. Laser Doppler velocimeter based on Janus configuration [J]. J Optoelectronics·Laser, 2011, 22(2): 266-271.

[5] 周建, 龙兴武. 载体振动对差动激光多普勒测速仪的影响[J]. 强激光与粒子数, 2011, 23(2): 325-328.

Zhou Jian, Long Xingwu. Influence of vehicle′s vibration on dual-beam laser Doppler velocimeter [J]. High Power Laser and Particle Beams, 2011, 23(2): 325-328.

[6] N Kees, M Weinberger, J Detlefsen. Doppler measurement of lateral and longitudinal velocity for automobiles at millimeter waves [C]. IEEE MTT-S Microwave Symposium Digest, 1993. 805-808.

[7] 胡海龙. 高精度信号处理技术在激光多普勒测速中的应用研究[D]. 成都: 电子科技大学, 2006.

Hu Hailong. Application of High Accuracy Signal Processing in Laser Doppler Velocimeter [D]. Chengdu: University of Electronic Science and Techenology of China, 2006.

[8] W R Fried. An FM-CW radar for simultaneous three-dimensional velocity and altitude measurement [J]. IEEE Trans Aerospace and Navigational Electronics, 1964, 11(1): 45-57.

邬战军, 韩凤山, 范哲, 林志立. 基于Janus配置的三光束激光多普勒测速仪[J]. 激光与光电子学进展, 2013, 50(7): 071404. Wu Zhanjun, Han Fengshan, Fan Zhe, Lin Zhili. Triple-Beam Laser Doppler Velocimeter Based on Janus Configuration[J]. Laser & Optoelectronics Progress, 2013, 50(7): 071404.

基于Janus配置的三光束激光多普勒测速仪

关于本站 Cookie 的使用提示

全站搜索

基于Janus配置的三光束激光多普勒测速仪

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索