Transponder responses defruiting method for aircraft secondary radar, involves testing synchronicity of responses received in different recurrences, with responses considered synchronous if condition including certain parameters is met

摘要

The method involves testing synchronous of responses received in different recurrences. The responses are considered as synchronous if condition comprising certain parameters is satisfied. The parameters include minimum and maximum radial speed of transponders with respect to secondary radar, distance at which transponder is detected in respective recurrences, and instant of transmission of interrogation in respective recurrences. Independent claims are also included for the following: (a) a defruiter for extraction of transponder responses; and (b) a secondary radar comprising a defruiter.