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| 运动目标微多普勒效应的激光雷达相干探测及特征提取 | |
| 引用本文： | 董晶,陈蕊,李小龙,张骏. 运动目标微多普勒效应的激光雷达相干探测及特征提取[J]. 中国激光, 2012, 39(10): 1014001-208 |
| 作者姓名： | 董晶 陈蕊 李小龙 张骏 |
| 作者单位： | 董晶:烟台大学光电信息学院， 山东 烟台 264005 陈蕊:烟台大学光电信息学院， 山东 烟台 264005 李小龙:烟台大学光电信息学院， 山东 烟台 264005 张骏:烟台大学光电信息学院， 山东 烟台 264005 |
| 基金项目： | 山东省自然科学基金(ZR2011FM007)资助课题。 |
| 摘 要： | 在建立口径为200mm,波长为1550nm的全光纤型激光相干雷达探测系统的基础上,展开对运动目标微多普勒效应的实验研究。对实验获取信号进行频谱分析和时域-频域联合分析的结果表明,时间-频域联合分析方法可有效地提取运动目标的微多普勒效应特征,从而得到目标在20～2000Hz的振动特征。利用这些特征可区分和识别不同运动目标,为目标的探测、分类和识别提供了一条有效的途径。 |
| 关 键 词： | 探测器 微多普勒效应 振动目标 激光雷达相干探测 时频分析 特征提取 |
| 收稿时间： | 2012-04-19 |
Laser Coherent Detection of Moving Target Based on Micro-Doppler Effect |
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| Dong Jing Chen Rui Li Xiaolong Zhang Jun. Laser Coherent Detection of Moving Target Based on Micro-Doppler Effect[J]. Chinese Journal of Lasers, 2012, 39(10): 1014001-208 | |
| Authors: | Dong Jing Chen Rui Li Xiaolong Zhang Jun |
| Affiliation: | Dong Jing Chen Rui Li Xiaolong Zhang Jun(Institute of Opto-Electronic Information,Yantai University,Yantai,Shandong 264005,China) |
| Abstract: | A laser coherent detection system, operating at 1550 nm and all fiber designed, is set up and a large aperture lens of 200 mm is used to collect scattered light. Using this system, the micro-Doppler effect of moving target is detected. The results of the signal analysis in spectrum analysis and time-frequency analysis show that time-frequency analysis is effectively to the feature extraction of micro-Doppler signal of moving target, which is time-varying. The different targets of 20~2000 Hz can be identified and classified by these characteristics. It provides an effective method of the feature extraction, classification and recognition of the target. |
| Keywords: | detectors micro-Doppler effect vibration target laser coherent detection time-frequency analysis feature extraction |
| 本文献已被 CNKI 等数据库收录！ | |