METHOD AND SYSTEM FOR RADIOMETRIC IMAGING WITH SPATIO-TEMPORAL OPENING SYNTHESIS

摘要

The invention relates to a method for the radiometric imaging of a surface of the Earth using a passive array antenna including elementary antennas (A(k)) arranged onboard at least one mobile satellite relative to the surface, including an allocation step (214) upon each analytic measurement of the measured electromagnetic field (E(k,t(i))), an index (k) for identifying the corresponding elementary antenna (A(k) and a precise sampling date (t(i)) corresponding to the measurement. The step comprises an image reconstruction step (224) from a spatio-temporal visibility function including a set of visibility coefficients, at least one visibility coefficient being equal to the correlation of two measurement vectors M(k,j), M(k', j') developed from electromagnetic field measurements and having different sampling indices (j, j').