Patent ID: 11867796
Assignee: THALES
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 3:
4. The method according to claim 1, comprising a step wherein, said targets being detected and located via their ADS-B squitters before the interrogation coverage of said radar, said targets are associated with ADS-B tracks as soon as they enter into said interrogation coverage, allowing them to be acquired by said secondary radar, then said tracks are momentarily unlocked on their entry into said operational radar coverage in order to allow a potentially locked state thereof, i.e. whether they are locked to another radar, i.e. the absence of synchronous DF11 replies, to be detected and thus potentially to make it possible to provide warning of a conflict in II/SI code to other Mode S targets without ADS-B capability while ensuring Mode S roll-call surveillance of a target as soon as it enters into the operational coverage of said radar.