A method for accurate faf circle approach based on equiangular route

Abstract

The invention provides a method for planning the terminal area route, guiding the approach, and constructing a missed approach path in the case of an approach failure by using the FAF circle under the equiangular route. The main processes include: 1. Airport information, FAF point position and other known information plan the process of completing the approach from the current position of the aircraft through the FAF circle and FAF point to the final approach segment; 2. Under the condition of the approach FAF circle track, according to the vertical and horizontal directions using the optimized control law to guide the aircraft to enter the field smoothly in the final glide segment; 3. When the aircraft cannot make the approach, construct a go-around path, including two cases of tangential FAF round go-around and five-sided go-around . The invention utilizes the information of the terminal area to provide a track construction method for the FAF circular approach, an optimized guidance control law and a go-around track construction method, and ensures the safety and stability requirements of the approach.

Description

technical field [0001] The invention belongs to the field of aviation technology, and in particular relates to a method for approaching an aircraft in a FAF circle manner under an isometric route. Background technique [0002] Terminology Explanation: [0003] IAF: Initial Approach Fix, final approach fix. [0004] IF: Intermediate Approach Fix, intermediate approach fix. [0005] FAF: Final Approach Fix, final approach fix. [0006] The flight segment composition of the current approach of the aircraft includes the initial approach segment, the intermediate approach segment and the final approach segment. The initial approach segment starts from the initial approach fix (IAF) and ends at the intermediate approach segment. The near fix (IF) or the segment that cuts to a point in the middle segment after completing the reverse route procedure and the straight route procedure; the middle approach segment refers to the aircraft from the intermediate approach fix (IF) to the ...

AI Technical Summary

Problems solved by technology

For example, the current "Y-shaped" and "T-shaped" basic configurations divide the aircraft's approach into three parts, including the direct entry area, the right quadrant and the left quadrant. In the border area, the approach path of the aircraft is relatively tortuous, and the control is difficult, which is not conducive to dealing with the problem of aircraft approach path planning in complex situations, and this path must be dispatched by the ground control, which increases the burden on the ground staff

[0008] At the same time, considering that the authenticity of the aircraft approach simulation is required in some cases, in order to analyze the solutions to various complex situations in the approach segment and provide a basis for the subsequent go-around path construction, it is necessary to combine the actual situation to construct the aircraft approach This is mainly reflected in the design of the control law for the approach segment, but the current control laws for the approach segment have not been designed in conjunction with the actual situation, and basically all use conventional control laws (controlling the attitude angle of the aircraft, etc. ), which is not conducive to reflecting the real approach control process of the aircraft

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