Open AccessResearch on the ranging statistical distribution of laser radar with a constant fraction discriminator
Author(s) -
Jiancheng Lai,
Chunyong Wang,
Wei Yan,
Zhenhua Li
Publication year - 2018
Publication title -
iet optoelectronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.379
H-Index - 42
eISSN - 1751-8776
pISSN - 1751-8768
DOI - 10.1049/iet-opt.2017.0067
Subject(s) - ranging , attenuation , discriminator , amplitude , radar , monte carlo method , signal (programming language) , laser , physics , computational physics , optics , mathematics , computer science , statistics , telecommunications , detector , programming language
A theoretical framework is presented to describe the statistical distribution of ranging data obtained by laser radar with a constant fraction discriminator. The solution's correctness has been verified by Monte‐Carlo simulation and fixed‐target‐ranging experiments. Based on the numerical calculations, the influences of delay and attenuation on the distribution of ranging data were discussed comprehensively, and found that there exist optimal delay and attenuation to make laser radar has best precision, the optimal attenuation k = 0.7 and delay τ = 2 ns for the calculation condition. At the optimal attenuation and delay, the peak position of ranging data distribution is free of the signal's amplitude, and the ranging data distribution is very close to the normal distribution with R 2 0.99991.