MULTI-TARGET DATA PROCESSING FOR MULTI-STATIC AND MULTI-CHANNEL PASSIVE RADARS

摘要

The present invention relates to the general field of radar tracking applied to multi-static radar systems. It consists of a method making it possible to coherently merge the elementary tracks formulated from the various bistatic bases constituting the system so as to formulate and sustain global tracks in such a way that an object detected by a single bistatic base is represented by the corresponding track and that an object detected by several bistatic bases and giving rise to the creation of several elementary tracks is represented only by a single global track. The merging of an elementary track with a global track or that of two elementary tracks to form a global track is based on the estimation of a statistical distance Y separating a global track i and an elementary track j from a bistatic base b, the calculation of Y being carried out using the components of bistatic distance, bistatic velocity and azimuth arising from the elementary track which is a candidate for the association and the projection y of the state x of the global track into the bistatic base of the candidate elementary track.