Mixed monitoring tracking method of airborne collision avoidance system

Abstract

The invention discloses a mixed monitoring tracking method of an airborne collision avoidance system. According to the method, with a comprehensive use of active monitoring and passive monitoring, mixed monitoring is achieved. The method includes the following steps of: initially using the active monitoring, determining a potential threat condition, tracking and confirming, shifting from the active monitoring to the passive monitoring, verifying passive monitoring data, determining a mixed threat condition, shifting from the passive monitoring to the active monitoring, and tracking and re-confirming. The above operations are used in a certain order to form the mixed monitoring tracking method; with use of the above method, while a collision avoidance capability of an existing TCAS is maintained, the interrogation frequency of the TCAS is reduced, the active request signals in airspace are reduced, and the signal complexity in the airspace is reduced. The ADS-B technology is used, so that the TCAS with the mixed monitoring function is higher in request efficiency, and the TCAS has the capability to track multiple aircrafts.

Description

technical field [0001] The invention relates to air collision avoidance technology, in particular to a monitoring and tracking method in an airborne collision avoidance system. Background technique [0002] TCAS (Traffic Alert and Collision Avoidance System) is an independent air traffic collision avoidance system that provides protection for aircraft equipped with transponders. TCAS actively asks the aircraft equipped with transponders around and tracks the received responses. If the TCAS algorithm determines that the aircraft is invading or is about to intrude, TCAS will issue a traffic alert message (TA); if the intruding aircraft continues to approach, TCAS will issue a decision message ( RA). The protection level provided by TCAS II is determined by the type of transponder carried by the opposing aircraft. If the intruding aircraft reports altitude (C / S mode), TCAS will send out traffic warning information and decision information; if the intruding aircraft is also equ...

AI Technical Summary

Problems solved by technology

ADS-B technology can broadcast various types of monitoring information that is rich in content and meets the requirements of precision and accuracy, but once ADS-B loses the basis for providing position reports (such as GPS) it will lose its ability to detect conflicts , and ADS-B as a brand new technology, its performance needs a lot of testing and evaluation to verify

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