Accurate FAF circular entrance method based on rhumb line

Abstract

The invention provides a method for constructing a re-flight path under the conditions of airport entrance guidance and entrance failure by using the FAF circle for terminal area air route planning under a rhumb line. The method mainly comprises the following steps: step one, planning a process of entering a final approach section from a current position of an airplane through an FAF circle and anFAF point according to known information such as airport information and the position of the FAF point under a rhumb line; step 2, under the condition of an approach FAF circular track, guiding the aircraft to stably approach at a final glide section by using an optimized control law according to the guiding wave beams in the vertical direction and the horizontal direction; and step 3, constructing a re-flight path under the condition that the aircraft cannot enter, including two conditions of tangent FAF circular re-flight and five-side re-flight. According to the invention, the FAF circularentrance flight path construction method, the optimized guidance control law and the re-flight flight flight path construction method are provided by using the information of the terminal area and thus the safety and stability requirements of entrance is ensured.

Description

technical field [0001] The invention belongs to the technical field of aviation, and in particular relates to a method for an aircraft to enter the field in the FAF circle mode under an equiangular route. Background technique [0002] Explanation of terms: [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 aircraft's current approach segment consists of an initial approach segment, an intermediate approach segment and a final approach segment. The initial approach segment starts from the initial approach fix (IAF) and ends at the intermediate approach segment. After approaching the fix (IF) or completing the reverse course procedure or the straight course procedure, the flight segment cuts to a point in the middle flight segment; the middle approach segment refers to the flight from the intermediate approach fix (IF) to the final appro...

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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