AVHRR image navigation - Summary and review
1989; American Society for Photogrammetry and Remote Sensing; Volume: 4; Issue: 8 Linguagem: Inglês
ISSN
2374-8079
AutoresWilliam J. Emery, Jim Brown, Zenon P. Nowak,
Tópico(s)Reservoir Engineering and Simulation Methods
ResumoThe navigation of imagery from polar orbiting weather satellites includes the correction for geometric distortions due to earth shape/earth rotation, satellite orbit variations, and satellite attitude along with the resampling of the satellite image to a selected geographic map projection. The routine image navigation procedure also compensates for the distortion of the satellite imagery due to the nonlinear scanning of the sensor system. This paper reviews general methods for performing this image navigation, ranging from a method that assumes no orbital information and, thus, relies on nominal orbital parameter values and image corrections computed by matching ground control points (GCPs), to a method that uses high-quality satellite ephemeris data to make the correction with a limited number of GCPs. A procedure to optimize the image navigation by using a spatial remapping, or interpolation, is introduced and outlined. Recommendations are made for people interested in the processing of AVHRR imagery.
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