Digital Filter Design for Sensor Simulation: Application to the Brazilian RemoteSensing Satellite

摘要

A model of the interaction between a large-field-of-view low-resolution sensor onboard an earth observation satellite and the earth surface is presented. The simulated sensor is obtained through the composition of a digital simulation algorithm by a smaller field-of-view and higher resolution sensor. A new digital filter design technique is proposed to approximate an ideal Gaussian filter. The resulting filter can be implemented on any existing image processing platform. Finally, two image patches as they would be produced by the SSR (Remote Sensing Satellite) of MECB (Brazilian Complete Spatial Mission) from a LANDSAT-TM (Thematic Mapper) scene are presented as an example.