| 基于不同伪随机码调制的半导体激光测距系统 |
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| 引用本文： | 杨健,季云飞,王誉鹏,刘娇. 基于不同伪随机码调制的半导体激光测距系统[J]. 激光与红外, 2017, 47(8): 953-956 |
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| 作者姓名： | 杨健 季云飞 王誉鹏 刘娇 |
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| 作者单位： | 固体激光技术重点实验室,北京 100015 |
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| 摘 要： | 针对半导体激光测距机无法同时满足小型化、远距离的要求,在半导体激光测距体制中,提出了视频积累和相关检测相结合的数字信号处理方法,在延时的方法下对不同伪随机序列的测距实验与m序列伪随机码进行对比。仿真结果表明,在相同的10 W峰值功率条件下,m序列既能保证测距精度,同时还具有更好的信噪比,这有助于提高半导体激光测距机的测距性能。
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| 关 键 词： | 激光测距；伪随机序列；视频积累；相关检测 |
Semiconductor laser ranging system based on different pseudorandom code modulation |
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| YANG Jian,JI Yun-fei,WANG Yu-peng,LIU Jiao. Semiconductor laser ranging system based on different pseudorandom code modulation[J]. Laser & Infrared, 2017, 47(8): 953-956 |
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| Authors: | YANG Jian JI Yun-fei WANG Yu-peng LIU Jiao |
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| Affiliation: | Science and Technology on Solid-state Laser Laboratory,Beijing 100015,China |
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| Abstract: | As LD rangefinder cannot meet the requirements of miniaturization and far ranging at the same time,digital signal processing method based on coherent integration and correlated detection is presented.Ranging performances of different pseudorandom codes and m sequence was compared by using delay method.The simulation results show that the ranging with m sequence has better ranging accuracy and SNR under the condition of 10 W peak power.The research result can help to improve the ranging performance of LD rangefinder. |
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| Keywords: | laser ranging pseudorandom modulation coherent integration correlated detection |
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