大气气溶胶光学厚度对天基光学遥感系统成像品质的影响

doi:10.3964/j.issn.1000-0593(2014)03-0735-06

CORC > 北京大学 > 地球与空间科学学院

	大气气溶胶光学厚度对天基光学遥感系统成像品质的影响; Effects of Aerosol Optical Thickness on the Optical Remote Sensing Imaging Quality
	胡新礼 ; 顾行发 ; 余涛 ; 张周威 ; 李娟 ; 栾海军
刊名	光谱学与光谱分析
	2014
关键词	气溶胶遥感系统成像品质 Aerosol Remote sensing system Imaging quality
DOI	10.3964/j.issn.1000-0593(2014)03-0735-06
英文摘要	由于大气环境的变化,大气气溶胶污染对光学遥感器成像品质的影响越来越受到载荷研制部门的重视。天基光学遥感系统成像过程中,受到大气气溶胶退化的影响使得光学遥感器成像品质的恶化。大气导致图像质量降低主要原因之一是气溶胶混浊介质引起的前向光散射。根据气溶胶辐射特性,利用混浊介质辐射传输方程,推导了包含气溶胶光学特性的大气点扩散函数模型。根据此模型,定量化分析与评价其对光学遥感器成像的大气模糊效应。研究发现气溶胶介质除了对遥感器成像过程中大气透过率能量衰减影响外,更重要的是由于散射对成像质量产生退化作用,大气气溶胶光学厚度的增加使得气溶胶散射强度的增强,气溶胶光学厚度的变化同样强烈的影响着点扩散函数的空...; In recent years, due to changes in atmospheric environment, atmospheric aerosol affection on optical sensor imaging quality is increasingly considered by the load developed departments. Space-based remote sensing system imaging process, atmospheric aerosol makes optical sensor imaging quality deterioration. Atmospheric medium causing image degradation is mainly forward light scattering effect caused by the aerosol turbid medium. Based on the turbid medium radiation transfer equation, the point spread function models were derived contained aerosol optical properties of atmosphere in order to analyze and evaluate the atmospheric blurring effect on optical sensor imaging system. It was found that atmospheric aerosol medium have effect on not only energy decay of atmospheric transmittance, but also the degradation of image quality due to the scattering effect. Increase of atmospheric aerosol optical thickness makes aerosol scattering intensity enhanced, variation of aerosol optical thickness is also strongly influences the point spread function of the spatial distribution, it is because the degradation of aerosol in spatial domain, which reduces the quality of remote sensing image, in particularly reduction of the sharpness of image. Meanwhile, it would provide a method to optimize and improve simulation of atmospheric chain.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000335624300036&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; SCI(E); EI; 中文核心期刊要目总览(PKU); 中国科技核心期刊(ISTIC); 0; huxl@irsa.ac.cn; irsa_wei@163.com; 03; 735-740; 34
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/214779]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	胡新礼,顾行发,余涛,等. 大气气溶胶光学厚度对天基光学遥感系统成像品质的影响, Effects of Aerosol Optical Thickness on the Optical Remote Sensing Imaging Quality[J]. 光谱学与光谱分析,2014.
APA	胡新礼,顾行发,余涛,张周威,李娟,&栾海军.(2014).大气气溶胶光学厚度对天基光学遥感系统成像品质的影响.光谱学与光谱分析.
MLA	胡新礼,et al."大气气溶胶光学厚度对天基光学遥感系统成像品质的影响".光谱学与光谱分析 (2014).