期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2006
卷号：XXXVI Part 4
出版社：Copernicus Publications
摘要：With ever increasing demand for accurate radiance values and high signal to noise ratio (SNR), new strategies need to be employed for optimal operations of space-borne sensors. The optimal operations include not only the a priori knowledge of the scene dynamics of interest but also inputs like sensor saturation radiances, sun illumination and sensor view angles etc. The objective of this paper is to make use the advantage of 100% albedo gain setting in visible-near IR bands of Advanced Wide-Field Sensor ( AWiFS ) of RESOURCESAT-1 in order to develop histogram database for multispectral imagery for any region within the country. This paper proposes the developmental procedure adapted for histogram database generation and retrieval to derive the statistics of spectral radiances expected within the selected part of the scene for appropriate gain settings, required for some sensors (e.g., IRS LISS sensors) equipped with variable gain settings
关键词：Signal-to-noise ratio; Satellite ephemeris; Spectral radiance; Variable gain settings
