Flight path self-adaptive smoothing method based on time sequence QAR parameters

A flight trajectory and self-adaptive technology, applied in the field of aviation information visualization, can solve problems such as jumps, longitude and latitude parameter errors, real altitude parameters, and different accuracy of altitude parameters, and achieve simple principles, high accuracy, and good stability.

Active Publication Date: 2020-05-26
四川函钛科技有限公司
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AI Technical Summary

Problems solved by technology

[0002] Flight segment trajectory restoration is a relatively basic and extensive use of QAR parameters, but there are errors in the collection of longitude and latitude para

Method used

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  • Flight path self-adaptive smoothing method based on time sequence QAR parameters
  • Flight path self-adaptive smoothing method based on time sequence QAR parameters
  • Flight path self-adaptive smoothing method based on time sequence QAR parameters

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Embodiment Construction

[0034] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, but not for limiting the protection scope of the present invention.

[0035] This embodiment proposes a method for adaptive smoothing of flight trajectory based on time series QAR parameters, such as figure 1 As shown, the specific method is:

[0036] S1: Extract the QAR parameters required to determine the smooth aircraft trajectory;

[0037] S11: Decoding and analyzing the QAR parameters in the civil aircraft to obtain a CSV file;

[0038] S12: Extract the parameter data required for smooth flight trajectory, including radio altitude, engine speed, longitudinal acceleration, airspeed, ground speed, vertical speed, flap state, slat state, landing overhead ground switch state, spoiler state , true height, and pitch angle.

[0039] S2...

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Abstract

The invention discloses a flight path self-adaptive smoothing method based on time sequence QAR parameters. The method specifically comprises the steps that S1, extracting the QAR parameters needed for judging smoothing of an aircraft path; S3, extracting a ground stage, a first flight stage and a second flight stage of an aircraft route segment according to the values of the cleaned QAR parameters; S4, performing smooth noise reduction processing on the ground stage and the first flight stage by adopting an S-G filtering smoothing algorithm; carrying out data smoothing processing on the second flight stage by adopting a moving average smoothing algorithm; S5, identifying and extracting a turning interval in the ground stage; and S6, carrying out smoothing processing on the turning interval by adopting n-order Bezier curve interpolation. The method provided by the invention is high in accuracy, simple in principle, good in stability and suitable for large-scale popularization, and different methods are adopted for smoothing according to the track characteristics of different stages.

Description

technical field [0001] The invention relates to the field of aviation information visualization, in particular to a method for self-adaptive smoothing of flight tracks based on time series QAR parameters. Background technique [0002] Flight segment trajectory restoration is a relatively basic and extensive use of QAR parameters, but there are errors in the collection of latitude and longitude parameters and small jumps in real altitude parameters. This is because the accuracy of altitude parameters obtained by different detectors is different in different flight stages. . The real altitude parameter is actually a combination of altitude parameter values ​​with higher accuracy in the current flight stage, so there will be a small jump when changing the used parameters. Example: Use radio altitude below 50 feet, use sea pressure correction altitude above 50 feet. This makes the restored trajectory less realistic. Contents of the invention [0003] In view of this, the ob...

Claims

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Application Information

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IPC IPC(8): G06F30/15
CPCY02T90/00
Inventor 綦麟廖字文刘柳
Owner 四川函钛科技有限公司
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