Patent ID: 6473027
Filing Date: 2002-10-29
Classification: G01S

Abstract:
A method for identifying false target signals on a radar display caused by reflection of radar signals from a reflector object in a surveillance region using a radar system that includes a radar interrogator comprised of a radar transmitter/receiver arranged to display plots of radar signals that indicate positions of targets in the surveillance region, comprising the steps of:obtaining a first plot of radar data for target position at a first time; obtaining a second plot of radar data for target position at a second time; comparing the first and second plots of radar data to determine whether they represent multiple reports of a single target or whether they represent different targets; determining a first range from the radar interrogator for the first plot of radar data if the first and second plots of radar data represent multiple reports of a single target; determining a second range from the radar interrogator for the second plot of radar data if the first and second plots of radar data represent multiple reports of a single target; comparing the first and second ranges to determine which has the larger magnitude; and identifying the plot of radar data having the larger range as being a false target signal.