TY - JOUR A1 - Segl, Karl A1 - Guanter, Luis A1 - Kaufmann, Hermann A1 - Schubert, Josef A1 - Kaiser, Stefan A1 - Sang, Bernhard A1 - Hofer, Stefan T1 - Simulation of spatial sensor characteristics in the context of the EnMAP Hyperspectral mission N2 - 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. Y1 - 2010 U6 - https://doi.org/10.1109/Tgrs.2010.2042455 SN - 0196-2892 ER -