4D track generating method

A track and 4D technology, applied in the field of nominal flight profile 4D track generation, can solve the problems that affect the accuracy of track planning, the dynamic model method depends on model parameters, and poor dynamic adaptability, etc.

Active Publication Date: 2014-12-24
THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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Problems solved by technology

The non-parametric data mining method of flight track data can solve the problem of track reckoning under normal conditions, but the dynamic adaptability is poor. The deviation of the results will be large, and the dynamic model method is too dependent on model parameters, and a large number of undetermined model parameters will affect the accuracy of t

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Embodiment Construction

[0055] The invention discloses a method for generating a nominal flight profile 4D (Four-Dimensional) track based on AMDAR (Aircraft Meteorological Data Relay) and GRIB (GRIded Binary). The method includes receiving the AMDAR data sent by the aircraft, the data including the longitude, latitude, flight altitude, flight time and meteorological data of the aircraft, generating the flight altitude profile in the multiple flight process after extracting the data, and adopting the dynamic time warping method ( Dynamic Time Warping, DTW) to generate the nominal flight altitude profile; in the case of unknown ground speed, according to the aircraft position data and AMDAR sampling interval, combined with the large ellipse distance algorithm and the basic aircraft performance database (Base of Aircraft Data, BADA) model, A method for generating a nominal flight speed profile is given; the GRIB weather forecast data is corrected with the AMDAR meteorological measured data according to t...

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Abstract

The invention discloses a 4D track generating method. The method includes the following steps of receiving aircraft meteorological data sent by an aircraft to download AMDAR data, conducting testing and quality control on the AMDAR data, generating a flight height profile and a flight speed profile according to the track historical information in the AMDAR data and the large elliptic distance method, generating a nominal flight profile as an initial 4D track generating profile according to the flight height profile and the flight speed profile and through a dynamic time warping (DTW) algorithm and an aircraft basic performance database (BADA) model, modifying weather forecast GRIB data according to actually-measured meteorological data in the AMDAR data, and calculating aircraft airway point-to-point time and combining the aircraft airway point-to-point time with the nominal flight profile to generate a 4D track.

Description

technical field [0001] The invention relates to a method for generating a nominal flight profile 4D (Four-Dimensional) track, in particular to a method for correcting weather forecast GRIB (GRIded Binary) based on aircraft meteorological data downlink (Aircraft Meteorological Data Relay, referred to as AMDAR) and meteorological measured data. , GRIB) data 4D trajectory generation method. Background technique [0002] As a basic key technology for the implementation of future airspace operations, 4D trajectory prediction and trajectory-oriented operations are the core components of the next-generation air traffic control automation system, flight flow management system and other systems. The dead reckoning system can be divided into two types according to the length of the deduction time: pre-tactical dead reckoning (simulation of the flight process several hours before the aircraft takes off) and tactical dead reckoning (simulation of the flight process of the aircraft in th...

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Application Information

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IPC IPC(8): G08G5/00
Inventor 汤新民邢健陈平
Owner THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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