De-noising flight program design method based on aerial noise restricted area fitting

Abstract

The invention discloses a de-noising flight program design method based on aerial noise restricted area fitting. The method comprises the following steps: acquiring the flow, flow direction and model data of target airport prediction traffic flow; converting the noise level requirements of corresponding sensitive points such as schools and hospitals around an airport into an aerial noise restricted area in a three-dimensional space; establishing a spatial curved surface equation of a restricted area boundary by adopting least square fitting; and solving a tangent line from an initial way point to a curve surface to obtain a de-noising flight program with an optimal distance. Through adoption of the de-noising flight program design method, the conventional problem that the ground aerial noise can only be computed after design of the flight program is solved; the design working efficiency is increased; and the noise flight program design accuracy is increased through establishment of a noise restriction program solving model.

Description

Technical field: [0001] The invention relates to a method for designing flight procedures of civil aviation airports, in particular to a method for designing noise-eliminating flight procedures based on aviation noise restricted area fitting. Background technique: [0002] In recent years, with the continuous increase in the number of flights at airports, the problem of aircraft noise nuisance has become a hot issue in society, and more and more attention has been paid to reducing the impact of aircraft noise. There are two main methods in the existing noise reduction flight program design: one is to achieve the effect of noise reduction through noise source control, and the other is to fly around the noise-limited area to reduce the noise impact of sensitive points. [0003] The noise source control method is based on the noise reduction program framework proposed by the International Civil Aviation Organization (ICAO, International Civil Aviation Organization). The aircraf...

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is that, aiming at the deficiencies in the design of noise-cancelling flight programs, it is proposed to convert the noise level requirements of sensitive points around the airport into three-dimensional space by collecting and predicting airport traffic flow, flow direction and aircraft type data. In the noise-limited area, the least-squares method is used to fit and establish the space surface equation of the boundary of the restricted area, and finally by solving the tangent from the initial waypoint to the surface, the noise-eliminating flight program with the optimal distance is obtained

Images