| 无扫描三维成像激光雷达原理分析与成像仿真 |
| |
| 引用本文： | 李芳菲,张珂殊,龚强. 无扫描三维成像激光雷达原理分析与成像仿真[J]. 科技导报(北京), 2009, 27(8) |
| |
| 作者姓名： | 李芳菲 张珂殊 龚强 |
| |
| 作者单位： | 中国科学院光电研究院,北京,100085;中国科学院光电研究院,北京,100085;中国科学院光电研究院,北京,100085 |
| |
| 摘 要： | 介绍了无扫描三维成像激光雷达的系统结构及成像原理.无扫描三维激光雷达是一种不需要扫描机构的三维成像系统,由信号调制、信号发射、微通道板调制、信号积分接收等模块组成.发射的激光信号经过正弦调制,利用回波信号与本地振荡器的相位差计算得出目标上各点距离,这种测距方法称为面阵相位法.与传统的扫描式激光雷达相比,无扫描三维成像激光雷达具有结构简单、成像速度快、可靠性高等优点,同时对激光脉冲频率的要求很低,因此在武器的末制导、车辆的主动防撞、机器人视觉等方面有着广阔的应用前景.本文介绍了无扫描三维成像激光雷达的系统结构以及面阵相位测距法的基本原理,并在Matlab环境下针对点目标、面阵目标对成像算法进行了仿真.验证了面阵相位法的测距原理及无扫描三维成像激光雷达的成像原理,并分析了可能存在的信号功率误差和CCD读数时的末位不稳定对成像精度的影响,为无扫描三维成像激光雷达的设备研制提供了有益的参考.
|
| 关 键 词： | 无扫描三维成像 激光雷达 成像算法 仿真 |
3D Scannerless Imaging LiDAR: Principles and Simulations |
| |
| LI Fangfei,ZHANG Keshu,GONG Qiang Academy of Opto-electronics,Chinese Academy of Sciences,Beijing ,China. 3D Scannerless Imaging LiDAR: Principles and Simulations[J]. Science & Technology Review, 2009, 27(8) |
| |
| Authors: | LI Fangfei ZHANG Keshu GONG Qiang Academy of Opto-electronics Chinese Academy of Sciences Beijing China |
| |
| Affiliation: | LI Fangfei,ZHANG Keshu,GONG Qiang Academy of Opto-electronics,Chinese Academy of Sciences,Beijing 100085,China |
| |
| Abstract: | This paper reviews the architecture and imaging principles of 3D scannerless LiDAR system. 3D scannerless LiDAR, as a 3D imaging system without scanner mechanism, consists of four modules: signal modulation, signal emission, MCP modulation and signal integral reception. The distances of the points on the object are calculated according to the phase difference between the echo of the sinusoidal modulated laser signal and the signal generated by a local oscillator. Comparing with scanning LiDAR systems, 3D sc... |
| |
| Keywords: | 3D scannerless imaging LiDAR imaging algorithm simulation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
