Detection and removal of self-alerts in a tracking system

G - Physics – 01 – S

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G01S 13/78 (2006.01) G01S 13/76 (2006.01) G01S 13/91 (2006.01)

Patent

CA 2415122

Improved methods and systems for detecting self-alerts from upload messages in a TIS system to thereby eliminate the likelihood of TIS self-alerts appearing on CDTI displays. The present invention determines whether a self-alert was present in a previous traffic information uplink to determine whether a target in a current information uplink is real. Using a weighting algorithm, typically a fuzzy logic algorithm, a system in accordance with the present invention can distinguish between targets in consecutive radar sweeps to identify self-alerts. If the self-alert was not present in previous uplinks, then the system removes the self-alert from subsequent views on the CDTI. Thus, the present invention provides an improved visual display system for pilots and air traffic controllers.

L'invention concerne des procédés et des systèmes permettant de détecter des auto-alarmes à partir de messages de téléchargement, de façon à supprimer les auto-alarmes éventuelles d'un système d'informations de trafic (TIS) apparaissant sur des affichages de poste de pilotage (CDTI). L'invention permet de déterminer la présence d'une auto-alarme dans une liaison montante antérieure d'informations de trafic, de façon à déterminer la réalité d'une cible dans une liaison montante courante d'informations. A l'aide d'un algorithme de pondération, généralement un algorithme en logique floue, le système de l'invention permet d'effectuer une distinction entre des cibles, dans des balayages radiaux consécutifs de radar, afin d'identifier des auto-alarmes. S'il n'existe pas d'auto-alarme dans les liaisons montantes antérieures, le système supprime les auto-alarmes des visualisations suivantes sur le CDTI. L'invention concerne également un système d'affichage amélioré pour les pilotes et les contrôleurs de trafic aérien.

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