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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Bibliographic Details
Published in:IEEE transactions on geoscience and remote sensing Vol. 48; no. 7; pp. 3046 - 3054
Main Authors: Segl, Karl, Guanter, Luis, Kaufmann, Hermann, Schubert, Josef, Kaiser, Stefan, Sang, Bernhard, Hofer, Stefan
Format: Journal Article
Language:English
Published: New York, NY IEEE 01.07.2010
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
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
Online Access:Get full text
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Summary: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.
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ISSN:0196-2892
1558-0644
DOI:10.1109/TGRS.2010.2042455