METHOD AND SYSTEM FOR SURVEILLANCE USING SYNTHETIC APERTURE RADAR IMAGES

摘要

A method and system of surveillance using a synthetic aperture radar system, in which a plurality of datasets are captured, each dataset comprising a plurality of images (1A, 2A, 3A, 4A, 5A) captured at a respective plurality of imaging positions along a path relative to an area of interest. Each image of a dataset is compared with a respective corresponding image of the preceding dataset to produce respective coherent change detection images [1(A-B), 1(B- C), 1(C-D). 1(D-E)] for each of said plurality of imaging positions. Then, the coherent change detection image for each imaging position is compared with the change detection image for the immediately preceding imaging position on said path to produce incoherent change detection images [1(A-B) –2(A-B)] representative of changes between consecutive imaging positions along said path.