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脉冲相干激光雷达测距信号研究
引用本文:田兆硕,王骐,王春晖,成向阳,李宁,李琦,尚铁良.脉冲相干激光雷达测距信号研究[J].光学学报,2002,22(9):081-1083.
作者姓名:田兆硕  王骐  王春晖  成向阳  李宁  李琦  尚铁良
作者单位:哈尔滨工业大学可调谐激光技术国家级重点实验室,哈尔滨,150001
摘    要:对脉冲激光雷达外差测距信号进行了研究,理论上,采用调Q激光脉冲的数值计算波形,研究了脉冲激光经远处目标漫反向后进行外差接收的波形及其傅里叶变换频谱成分。实验上,研究了可调谐电光调Q射频激励波导CO2激光器脉冲激光经目标反射后的外差波形及其傅里叶变换频谱成分,并计算了目标的距离,理论分析与实验结果一致。

关 键 词:脉冲相干激光雷达  测距信号  电光调Q  CO2激光器
收稿时间:2001/9/14

Study on Ranging Signal of Pulse Coherent Laser Radar
Tian Zhaoshuo Wang Qi Wang Chunhui Cheng Xiangyang Li Ning,Li Qi Shang Tieliang.Study on Ranging Signal of Pulse Coherent Laser Radar[J].Acta Optica Sinica,2002,22(9):081-1083.
Authors:Tian Zhaoshuo Wang Qi Wang Chunhui Cheng Xiangyang Li Ning  Li Qi Shang Tieliang
Abstract:The Investigation of pulse ranging signal for pulse coherent laser radar is presented. On the basis of the calculated pulse waveform of Q-switched laser, the waveform of pulse laser heterodyne and its frequency spectrum of Fourier transform reflected from scattered treflection object are studied theoretically. Experimental studies are made on reflected pulse laser heterodyne of tunable electrooptically Q-switched CO 2 laser and its frequency spectrum of Fourier transform. In addition, the objected range is calculated. The experimental results are consistent with the theoretical analyses.
Keywords:pulse coherent laser radar  ranging-find signal  electrooptically Q-switch  CO  2 laser
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