Study on error of non-line-of-sight light propagation by single-scattering model

JIA Hong-hui; CHANG Sheng-li; YANG Jian-kun; LAN Yong; SHAO Zheng-zheng; JI Jia-rong

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Study on error of non-line-of-sight light propagation by single-scattering model

更新时间：2020-08-12

- Study on error of non-line-of-sight light propagation by single-scattering model
- Optics and Precision Engineering Vol. 15, Issue 1, Pages: 40-44(2007)
- 作者机构：
  
  国防科技大学,湖南长沙 410073
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN929.1
- Received：29 April 2006，
  
  Revised：26 October 2006，
  
  Published Online：30 January 2007，
  
  Published：30 January 2007
- 稿件说明：
移动端阅览
JIA Hong-hui, CHANG Sheng-li, YANG Jian-kun, et al. Study on error of non-line-of-sight light propagation by single-scattering model[J]. Optics and precision engineering, 2007, 15(1): 40-44.
DOI：

JIA Hong-hui, CHANG Sheng-li, YANG Jian-kun, et al. Study on error of non-line-of-sight light propagation by single-scattering model[J]. Optics and precision engineering, 2007, 15(1): 40-44. DOI：

摘要

基于蒙特卡罗(Monte Carlo)方法建立了非视线光传输多次散射模型

引入大气光传输系统脉冲响应峰值大小

定量计算了单次散射近似研究非视线光传输时的误差大小。结果表明:大气吸收系数

对误差影响较小

误差随大气散射系数

和非视线传输光程

的增大而增大;当

值(

)＞3时

由于多次散射作用明显

误差＞80%;当

＜3时

误差随

值减小而减小

＜0.3时

误差＜10%

此时单次散射近似可用来研究散射大气中非视线光传输问题。

Abstract

The Non-Line-of-Sight (NLOS) light propagation model based on Monte Carlo (MC) method was described. Comparing with the pulse response function simulated by MC method

the error of NLOS light propagation based single-scattering approximating model was analyzed. The results show that the influence of the scattering coefficient

and NLOS light propagation path

on the error is larger than that of absorption coefficient

; when

(

) is greater than 3

as the multiple-scattering effect is in the primary place

the error is greater than 80%; the error decreases with the decreasing

when

is littler than 3

especially

the error is below 10% when

is litter than 0.3

and then single-scattering model is suitable for studying NLOS light propagation in scattering atmosphere.

关键词

Keywords

references

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