An optimization method for target monitoring and tracking performance of airborne collision avoidance system

Abstract

The invention relates to the technical field of airborne collision avoidance, and discloses an optimization method for the target monitoring and tracking performance of an airborne collision avoidancesystem. Specifically, the method includes the following processes: judging whether an aircraft is making large maneuvering flight according to the course angle, roll angle and pitch angle informationinput by a carrier aircraft; if the aircraft is making large maneuvering flight, correcting the track angle of current monitoring and tracking according to the evaluated course angle change rate to form a virtual corrected track, and dispatching the launch direction of an inquiry signal according to the azimuth angle of the virtual corrected track to make an inquiry; and if a received response signal satisfies the track updating rule, converting the virtual corrected track into a corrected track and outputting the corrected track to the next processing cycle, and keeping the aircraft in the period of large maneuvering flight. Through the scheme, the influence of the antenna and the installation environment on the azimuth measurement of a target aircraft is eliminated, the accuracy and stability of the track tracking angle are maintained, and the situation awareness ability is improved.

Description

technical field [0001] The invention relates to the technical field of airborne collision avoidance, in particular to a method for optimizing the target monitoring and tracking performance of an airborne anti-collision system. Background technique [0002] Airborne Collision Avoidance System (ACAS-Airborne Collision Avoidance System, also known as TCAS-Traffic Alert and Collision Avoidance System) is defined by the Federal Aviation Administration (FAA). Traffic Alert (TA) and Resolution Alert (RA). TCAS is an essential device to prevent dangerous approaches and collisions of aircraft in the air, and it can work independently of the ground traffic control system. The function and performance index of the system shall meet the minimum performance standard of RTCA / DO185B. The system is mainly used to provide air safety separation guarantee for aircraft, and uses secondary radar to detect approaching aircraft in the nearby airspace. When necessary, it reminds pilots to take ev...

AI Technical Summary

Problems solved by technology

The actual situation is that due to the inherent inhomogeneity of the directional antenna pattern, coupled with the fact that after the actual installation, the wing and tail cover the antenna, the blind area of ​​the antenna in the high elevation angle area, and the large maneuvering turn / roll of the carrier aircraft, etc., As a result, the actual angle measurement accuracy often cannot meet the requirements specified in the standard, and the current single target tracking algorithm based on Cartesian filters cannot adapt to antenna occlusion, blind spots, and large maneuvers in actual use, resulting in out-of-tolerance angle measurement accuracy, and even in some cases In this case, it will also cause track interruption, affecting normal airspace surveillance and situational awareness

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