TRACKER FALSE ALARM RATE CONTROL

摘要

The present invention relates to a method of reducing false alarms. Specifically, the present invention relates to reducing the number of false alarms reported as tracks by a radar tracker. The present invention provides a method of reducing false alarms issued by a radar installation, the method comprising the steps of; establishing a map corresponding to a surveillance area; populating the map with plots derived from plot data returned from the radar installation over a number of looks; identifying an apparent target; generating one or more cells in the map dependent on the location of the plot data contained in the map and a channel occupied by the apparent target; calculating a clutter density associated with the, or each, cell; and determining a status of the apparent target dependent on the, or each, clutter density. This method of reducing false alarms in the detection of targets is, therefore, able to optimise the computational burden the system dedicates to computing an accurate clutter estimate.