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Proceedings Paper

Study on the range precision of laser range finder based on APDs
Author(s): Feng Wang; Xiaodong Jia; Jianzhong Su
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Paper Abstract

A key application of laser range finder (LRF) is measurement of range to a target. Many modern LRFs are capable of transmitting laser pulses that are nanoseconds in duration. These pulses provide excellent range precision. However, randomness in the detected laser signals places limits on the precision. The first goal of this paper is to quantify the range precision limits of LRF. The randomness in the time between photon arrivals, which is called shot noise, is discussed. System-dependent noise sources such as dark current and detector gain variation are considered. The effect of scene-dependent parameters including background light. Finally, a noise mitigation strategy, gain equalization is described and tested on simulated.

Paper Details

Date Published: 20 August 2011
PDF: 8 pages
Proc. SPIE 8192, International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging, 81922W (20 August 2011); doi: 10.1117/12.900780
Show Author Affiliations
Feng Wang, Tianjin Jinhang Institute of Technical Physics (China)
Xiaodong Jia, Tianjin Jinhang Institute of Technical Physics (China)
Jianzhong Su, Tianjin Jinhang Institute of Technical Physics (China)


Published in SPIE Proceedings Vol. 8192:
International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging
Farzin Amzajerdian; Weibiao Chen; Chunqing Gao; Tianyu Xie, Editor(s)

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