False targets caused by reflection position determining solution and system for secondary surveillance radar

Abstract

The invention proposes False targets caused by reflection position determining system and solution for the SSR which helps determine reflected real target's coordinate, reflector's coordinate and features, coordinate and features of the false target (multipath target) and using these data as the basis to build up the multipath target suppressing system, guaranteeing the detecting ability of the radar. The proposed system contains: Input data generating component; False target position (multipath position) determining component; Reflected signal power comparison calculating component; Displaying and data transferring component; Reflected multipath targets suppressing component. The proposed measure includes 5 steps: Step 1: generating input data for the multipath position determining system; step 2: determining the position of the target's ghost; step 3: comparing the signal power; step 4: displaying and false target information (position, power) transferring; step 5: applying multipath suppressing algorithm on the SSR.