摘要
基于空间线性可变滤波器的成像光谱仪 SVFIS是为纳型卫星设计的高光谱遥感系统 ,它的最大优点是结构简单 ,因而机械稳定性和热稳定性非常高 ,特别适合在航天环境下使用。本文简要介绍了航天高光谱遥感和成像光谱仪 ,重点介绍 SVFIS的系统结构并阐明它的工作原理。 SVFIS的数据具有冗余性和延时性的特点 ,虽然有它不利的一面 ,但其影响程度依赖于系统设计。由于 SVFIS数据中包含着地势起伏、目标运动和平台姿态变化的信息 ,为研究这些信息 ,我们对像面进行了特殊的设计 ,这是
Imaging spectrometer based on spatially linear variable filter SVFIS is presented as hyperspectral remote sensing system for nanosatellite.The principle advantage of SVFIS over alternative IS approaches is its simple design that brings high mechanical and thermal stability favorable to space applications.In this paper,spaceborne hyperspectral remote sensing and imaging spectrometer are introduced briefly and the configuration and operation of SVFIS are introduced in detail.The hyperspectral data of SVFIS has characteristics of redundancy as well as non-simultaneous collection.Although they are on a certain degree disadvantageous,their effects depend on system design.Data of SVFIS includes such information as terrain? movement of target and platform pointing accuracy.For the sake of the study of these information,special design is taken to the image plate,which brings to the system special functions that traditional IS has not.
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2002年第4期12-14,共3页
Journal of Astronautics
基金
863青年基金资助
