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Boundary evaluation and error correction on pseudo-random spread spectrum photon counting system

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Abstract

The Cramer–Rao lower bound on range error is modeled for pseudo-random ranging systems using Geiger-mode avalanche photodiodes. The theoretical results are shown to agree with the Monte Carlo simulation, satisfying boundary evaluations. Experimental tests prove that range errors caused by the fluctuation of the number of photon counts in the laser echo pulse leads to the range drift of the time point spread function. The function relationship between the range error and the photon counting ratio is determined by using numerical fitting. Range errors due to a different echo energy is calibrated so that the corrected range root mean square error is improved to 1 cm.<录用日期>2017-06-09<上网时间>2017-06-14

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DOI:10.3788/col201715.090101

所属栏目:Atmospheric optics and oceanic optics

基金项目:This work was supported by the National Natural Science Foundation of China (Nos. 61101196 and 61271332) and the Natural Science Research Foundation of Jiangsu Province (No. 168JB510015).

收稿日期:2017-02-18

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Shanshan Shen:Nanjing University of Science and Technology, Jiangsu Key Laboratory of Spectral Imaging & Intelligence Sense, Nanjing 210094, ChinaCollege of Zi Jin of Nanjing University of Science and Technology, Nanjing 210046, China
Qian Chen:Nanjing University of Science and Technology, Jiangsu Key Laboratory of Spectral Imaging & Intelligence Sense, Nanjing 210094, China
Weiji He:Nanjing University of Science and Technology, Jiangsu Key Laboratory of Spectral Imaging & Intelligence Sense, Nanjing 210094, China
Yuqiang Wang:Nanjing University of Science and Technology, Jiangsu Key Laboratory of Spectral Imaging & Intelligence Sense, Nanjing 210094, China

联系人作者:chenqian@njust.edu.cn;

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引用该论文

Shanshan Shen, Qian Chen, Weiji He, Yuqiang Wang, "Boundary evaluation and error correction on pseudo-random spread spectrum photon counting system," Chinese Optics Letters 15(9), 090101 (2017)

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