Patent ID: 6061016
Filing Date: 2000-05-09
Classification: G01S

Abstract:
A method of using ancillary channels of at least one ancillary antenna of a radar for attenuation of clutter coming from reflection lobes of a processed channel of a main antenna of the radar, comprising:determining a position of a phase center of each ancillary channel as well as a position of a local phase center of each reflection lobe;memorizing said position of said phase center of each ancillary channel and said position of said local phase center of each reflection lobe;compensating for a difference in signal path between each ancillary channel and said processed channel in a doppler distance/frequency ambiguous domain, for each of a number of computation channels processed and for each ancillary channel, andgenerating a synthetic channel by performing side lobe opposition processing, including performing a coherent subtraction between the signals of the processed channel considered and those of the ancillary channel considered, on a zone of the doppler distance/frequency ambiguous domain of each of the processed channels.