SYSTEM FOR MONITORING AND DETECTING AN EVENT ON THE GROUND SURFACE BY A SATELLITE CONSTELLATION

摘要

The invention relates to a satellite monitoring system for at least one area of interest (101, 202) of at least one geographic region (102) of a planet (103), for detecting an event in a zone of interest (101, 202) of a geographic region (102) and signaling the location of the event, the monitoring system comprising a plurality of satellites (111, 112) orbiting the planet (103) and a data processing device (240). Each of said satellites (111, 112) comprises at least one acquisition device (220) of at least one image of the geographic region (102), said image having a spatial resolution of at least one order of magnitude greater than one characteristic dimension of the area of interest (101, 202). The data processing device comprises means for comparing the acquired image's radiance value with respect to a reference radiance temporal profile calculated from previously acquired and stored images.