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Novel trajectory circle number calculation method and system based on number of circles

A calculation method and technology of a calculation system, applied in the field of aviation information, can solve the problems of low accuracy of lap calculation, great impact on results, and inability to correctly judge the number of laps, and achieve the effect of improving recognition accuracy and strong robustness.

Pending Publication Date: 2022-03-01
CHENGDU FOURIER ELECTRONICS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing method of calculating the number of circling circles, the method of using the intersection point is not suitable for the complex trajectory of multi-circling circles at the same location, and the calculation accuracy of the number of circles is low; using the method of the sum of the heading angle changes, the parameters such as the window length and threshold are set in advance. It has a great influence on the result; using the method of complex variable function integration, the number of turns cannot be correctly judged for the shape of the irregular and complex spiral trajectory

Method used

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  • Novel trajectory circle number calculation method and system based on number of circles
  • Novel trajectory circle number calculation method and system based on number of circles
  • Novel trajectory circle number calculation method and system based on number of circles

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Experimental program
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Effect test

Embodiment 1

[0043] Such as Figure 10 As shown, the present embodiment provides a method for calculating the number of circles of a novel trajectory based on the number of circles, including the following steps:

[0044] S1. Obtain the trajectory data of ADS-B;

[0045] S2. Determine the center point of the circle, including the following steps:

[0046] S21, using the intersection point of the trajectory to obtain the intersection point time period, and taking the intersection of the inclusion relationship in the intersection point time period, to obtain the start time and end time of the trajectory circle, that is, to obtain the trajectory segment of the circle;

[0047] S22. Use the trajectory segment of the circle to calculate the center point of the circle, perform unsupervised clustering on multiple center points of the circle, obtain the class corresponding to the center point of the circle, calculate the mean value of each class, and obtain the circle center of each class point;...

Embodiment 2

[0062] Such as Figure 9 As shown, this embodiment provides a calculation system for calculating the number of orbital circles based on the number of orbits, which is used in the method for calculating the number of orbital circles based on the number of orbits in Embodiment 1. The calculation system includes:

[0063] Obtaining module, for obtaining the track data of ADS-B;

[0064] The processing module is first used to obtain the intersection point time period by using the intersection point of the trajectory, and obtains the intersection set of the inclusion relationship in the intersection point time period to obtain the start time and end time of the trajectory circle; then use the trajectory circle to calculate the center point of the circle circle, Perform unsupervised clustering of multiple circle center points to obtain the class corresponding to the circle center point, calculate the mean value of each class, and obtain the circle center point of each class;

[006...

Embodiment 3

[0069] A computer-readable storage medium, on which a computer program is stored, and when the computer program is run by a processor, the storage medium device is controlled to execute the above-mentioned method for calculating the number of revolutions of a new trajectory based on the number of orbits.

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Abstract

The invention discloses a novel trajectory circling turn number calculation method and system based on the number of turns. The novel trajectory circling turn number calculation method comprises the following steps: S1, obtaining ADS-B trajectory data; s2, determining the center point of the spiral ring; and S3, calculating the number of circling circles of the center point of the circling circle. The system for calculating the number of circling turns comprises: an acquisition module, which is used for acquiring trajectory data of the ADS-B; the processing module is used for determining the center point of the spiral ring; and the calculation module is used for calculating the number of circling circles of the circling circle center point. The total number of circling turns of the aircraft in the flight process can be calculated, and the number of circling turns of the aircraft around a certain point can also be calculated.

Description

technical field [0001] The invention relates to the technical field of aviation information, in particular to a method and system for calculating the number of circles of a new trajectory based on the number of circles. Background technique [0002] During the flight, the aircraft often encounters bad weather, short flight intervals between multiple sorties, saturated airspace, high altitude, aircraft failure and other situations that affect the normal flight of the aircraft. For this, the aircraft will wait for a period of time in circle or use circle to Create situations for climbing and descending altitudes. The circling section of the aircraft's flight trajectory is very important to the fuel consumption analysis of the entire flight process and the pilot's operation analysis. According to the information such as the circling duration and the number of circling circles in the circling section, the aircraft fuel consumption, the deviation of the flight distance and the du...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/18G06K9/62
CPCG06F17/18G06F18/2321
Inventor 张雪吴施楷杜红林
Owner CHENGDU FOURIER ELECTRONICS TECH