ADS-B track cleaning and calibration method based on local traversal density clustering

A technology of density clustering and calibration method, which is applied in the field of aviation, and can solve problems such as cumbersome implementation, increased number of traversals, and reduced detection efficiency

Active Publication Date: 2019-10-22
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

When the abnormal point happens to be the first point (boundary point) of the trajectory, using the filtering method requires additional pre-judgment processing and is more cumbersome to implement, while using the density

Method used

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  • ADS-B track cleaning and calibration method based on local traversal density clustering
  • ADS-B track cleaning and calibration method based on local traversal density clustering
  • ADS-B track cleaning and calibration method based on local traversal density clustering

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Embodiment 1

[0056] Such as figure 1 As shown, Embodiment 1 provides an ADS-B track cleaning and calibration method based on local ergodic density clustering. Using the DBSCAN density clustering method of local traversal to identify outliers, greatly improving the cleaning efficiency, and correcting the time stamp through track calibration, so that the entire flight track conforms to the law of particle kinematics. Specifically, the following steps are included:

[0057] S110: Establish a data sample based on the characteristic field of the ADS-B track data, wherein the characteristic field includes an initial field and an extended field, and the extended field is calculated through the initial field;

[0058] S120: Deduplicating the data samples;

[0059] S130: Select a feature field according to the data characteristics of the feature field in the data sample, and use it for field data anomaly detection and processing;

[0060] S140: Identify outliers in the characteristic fields of t...

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Abstract

The invention relates to an ADS-B track cleaning and calibration method based on local traversal density clustering. The ADS-B track cleaning and calibration method based on local traversal density clustering comprises the steps that a data sample based on feature fields of ADS-B track data is established, the feature fields comprise an initial field and an extended field, and the extended field is obtained through calculation of the initial field;; de-duplication is carried out on the data sample; a feature field is selected according to data characteristics of the feature field in the data sample and is used for the feature field for field data exception detection and processing; outlier identification is carried out on the feature fields of the data samples according to a DBSCAN densityclustering method of local traversal, abnormal points are judged, and the abnormal points are corrected or deleted; and the flight path is calibrated according to the initial field in the data sample. The outliers are identified by using a DBSCAN density clustering method of local traversal, the cleaning efficiency is greatly improved, and the timestamp is corrected through track calibration, sothat the whole flight path conforms to the particle kinematics law.

Description

technical field [0001] The invention relates to the field of aviation, in particular to an ADS-B track cleaning and calibration method based on local ergodic density clustering. Background technique [0002] Automatic Dependent Surveillance-Broadcast (Automatic Dependent Surveillance-Broadcast, ADS-B) is determined by the International Civil Aviation Organization (ICAO) as the main navigation surveillance technology in the future. Other aircraft and ground receiving stations equipped with ADS-B receiving equipment automatically broadcast flight identification marks, location and flight status information to realize coordinated and integrated monitoring of air-to-air, air-to-ground and surface operations. In recent years, my country has begun to vigorously promote the development and application of ADS-B technology in the air traffic control system. [0003] The ADS-B flight track of a flight consists of multiple track points, and each track point has multiple field informat...

Claims

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Application Information

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IPC IPC(8): G06F16/215G06F16/28
CPCG06F16/215G06F16/285
Inventor 王兵刘芳子谢华袁立罡陈海燕张颖李杰
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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