Simulation of Spatial Sensor Characteristics in the Context of the EnMAP Hyperspectral Mission

The simulation of remote sensing images is a valuable tool for defining future Earth observation systems, optimizing instrument parameters, and developing and validating data-processing algorithms. A scene simulator for optical Earth observation data has been developed within the Environmental Mappi...

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Vydáno v:	IEEE transactions on geoscience and remote sensing Ročník 48; číslo 7; s. 3046 - 3054
Hlavní autoři:	Segl, Karl, Guanter, Luis, Kaufmann, Hermann, Schubert, Josef, Kaiser, Stefan, Sang, Bernhard, Hofer, Stefan
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	New York, NY IEEE 01.07.2010 Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:	Algorithms Applied geophysics Atmospheric modeling Computer simulation Context modeling Coregistration Data processing Earth Earth sciences Earth, ocean, space Environmental Mapping and Analysis Program (EnMAP) Exact sciences and technology Hyperspectral imaging Hyperspectral sensors Instruments Internal geophysics keystone Layout Mathematical models Missions modulation transfer function (MTF) Modules Remote sensing Sensor phenomena and characterization Simulation Solid modeling spatial aberrations spatial simulation Studies Middle East Louisiana Israel Asia United States algorithms reflectance simulation Space remote sensing data processing spatial aberrations Environmental Mapping and Analysis Program (EnMAP) North America modulation transfer function (MTF) spatial simulation instruments geometry Coregistration transfer functions programs keystone distortion
ISSN:	0196-2892, 1558-0644
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Popis
Shrnutí:	The simulation of remote sensing images is a valuable tool for defining future Earth observation systems, optimizing instrument parameters, and developing and validating data-processing algorithms. A scene simulator for optical Earth observation data has been developed within the Environmental Mapping and Analysis Program (EnMAP) hyperspectral mission. It produces EnMAP-like data following a sequential processing approach consisting of five independent modules referred to as reflectance, atmospheric, spatial, spectral, and radiometric modules. From a modeling viewpoint, the spatial module is the most complex. The spatial simulation process considers the satellite-target geometry, which is adapted to the EnMAP orbit and operating characteristics, the instrument spatial response, and the sources of spatial nonuniformity (keystone, telescope distortion and smile, and detector coregistration). The spatial module of the EnMAP scene simulator is presented in this paper. The EnMAP spatial and geometric characteristics will be described, the simulation methodology will be presented in detail, and the capability of the EnMAP simulator will be shown by illustrative examples.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 ObjectType-Article-2 ObjectType-Feature-1 content type line 23
ISSN:	0196-2892 1558-0644
DOI:	10.1109/TGRS.2010.2042455