Range resolution improvement by a reversed m-sequence phase coded lidar system
Range resolution improvement by a reversed m-sequence phase coded lidar system
复制标题
通过反向 m 序列相位编码激光雷达系统提高距离分辨率
DOI：
10.1088/1054-660x/23/9/095601
复制
发表时间：
2013-09
期刊：
影响因子：
1.2
通讯作者：
Yuan Zhao
中科院分区：
文献类型：
--
作者：
LongWu;Liping Liu;Yong Zhang;Yuan Zhao
The traditional phase coded lidar systems require the collection of every returned laser pulse and are restricted in range resolution by sampling frequency and subpulse width. This paper proposes a reversed m-sequence acquisition method for signal detection. The detector accumulates N − 1 bits of the emitted laser sequence to deduce the Nth bit of the sequence. The indoor experiment achieved 2 μs resolution with the sampling period of 28 μs by employing a 15-bit m-sequence. This method achieves the acquisition of an m-sequence with narrow subpulse width whereas the sampling frequency is kept low. This paper also presents the phase coded imaging lidar simulation, which achieved 1.5 m range resolution with a 50 kHz sampling frequency by employing a 2047-bit m-sequence. The simulation showed an approach to implement phase coded imaging lidar in practical application.
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通讯作者：
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DOI：
10.1117/12.735453
发表时间：
2007-09
期刊：
--
影响因子：
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DOI：
10.1117/12.817254
发表时间：
2009-02
期刊：
--
影响因子：
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作者：
Xiaoli Sun;J. Abshire
通讯作者：
Xiaoli Sun;J. Abshire