| 多通道脉冲激光探测技术研究 |
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| 引用本文： | 张彦梅,盛珂,李建平.多通道脉冲激光探测技术研究[J].北京理工大学学报,2014,34(4):417-420426. |
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| 作者姓名： | 张彦梅 盛珂 李建平 |
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| 作者单位： | 北京理工大学信息与电子学院,北京100081;北京理工大学信息与电子学院,北京100081;北京理工大学信息与电子学院,北京100081 |
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| 基金项目： | 国家部委预研项目（40403020301） |
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| 摘 要： | 在介绍多通道激光探测系统工作原理的基础上，设计了一种基于数字化的激光探测系统，采用一种基于抛物线内插互相关时延估计的激光定距方法，从而进一步提高定距精度. 该系统采用6路双通道ADC并行采样，具有较好的实时性. 仿真结果表明，互相关时延估计算法能够在低信噪比（RSN=-7 dB）下实现定距，最大距离误差为0.74 m.
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| 关 键 词： | 数字化 激光探测 多通道 时延估计 |
| 收稿时间： | 2012/10/6 0:00:00 |
Study on Multi-Channel Detection for Pulse Laser |
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| ZHANG Yan-mei,SHENG Ke and LI Jian-ping.Study on Multi-Channel Detection for Pulse Laser[J].Journal of Beijing Institute of Technology(Natural Science Edition),2014,34(4):417-420426. |
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| Authors: | ZHANG Yan-mei SHENG Ke and LI Jian-ping |
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| Institution: | School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | Principle of laser detection system based on six quadrants was introduced in this paper. On that basis, a king of digital laser detection system was designed, and a kind of laser ranging method was adopted which based on parabolic interpolation cross-correlation time delay estimation, and the method was able to further improve ranging accuracy. This system adopts dual-channel analog to digital converter to sample the echo signal, and this method of data acquisition performs good real-time. The simulation result indicates that cross-correlation time delay estimation is able to discover the objects of low SNR (RSN=-7dB) in the laser ranging, and range error is less than 0.74 m. |
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| Keywords: | digitization laser detection multi-channel time delay estimation |
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