Patent ID: 6452534
Filing Date: 2002-09-17
Classification: G01S

Abstract:
A radar detection system for a vehicle having a desired detection zone spatially associated with said vehicle, comprising:a first radar source generating a first radar beam pattern having a first arc beam width with said first beam pattern superimposed upon said detection zone to substantially encompass said detection zone, said first radar source producing a first object detection signal indicating the presence of an object within said first beam pattern, said first beam pattern including a false alarm area outside said detection zone, a second radar source generating a second beam pattern having a second arc beam width having an angular measure less than said first arc beam width with said second radar pattern superimposed upon said detection zone to encompass less than the entirety of said detection zone and not encompassing at least a portion of said false alarm area, said second radar source producing a second object detection signal indicating the presence of an object within said second beam pattern, and a signal processor for comparing said first object detection signal with said second object detection signal and producing a composite detection signal not affected by objects in at least a portion of said false alarm area.