现代电子技术2016，Vol.39Issue(11)：59-62,4.DOI:10.16652/j.issn.1004-373x.2016.11.015
脉冲压缩在激光测距中的应用
Application of pulse compression in laser range-finding
裘园 1黄磊 1王巍1
作者信息
- 1. 清华大学 精密仪器系，北京 100084
- 折叠
摘要
Abstract
The pulse laser range⁃finding and phase laser range⁃finding are the main methods of laser range⁃finding presently, but they may lose efficiency easily in complex noise environment due to oblivion of echo signal covered in the noise. Since the weak echo signal is difficult to extract,the pulse compression laser range⁃finding method is proposed. The pulse laser of linear frequency modulation is emitted,and received with pulse compression technology to increase the pulse peak power,improve the signal⁃to⁃noise ratio,and obtain the echo signal covered in noise. The method has important research significance and application value to improve the range⁃finding distance and reduce the laser power. The mathematical model of pulse compression method in laser range⁃finding was established. The typical Gaussian white noise environment was simulated. The influence of pulse compres⁃sion parameters on the laser range⁃finding is analyzed. The laser signal source of linear frequency modulation was designed,and the pulse compression signal processing was realized based on FPGA.关键词
激光测距/脉冲压缩/噪声环境仿真/回波信号提取Key words
laser range-finding/pulse compression/noise environment simulation/echo signal extraction分类
信息技术与安全科学引用本文复制引用
裘园,黄磊,王巍..脉冲压缩在激光测距中的应用[J].现代电子技术,2016,39(11):59-62,4.
