Method for extracting target classic track in complex environment

A technology of complex environment and extraction method, applied in the field of data mining of computer science and technology, can solve the problems of inconsistent time length, discontinuous track, and ineffectiveness, etc., to improve the effect, strengthen the practical value of the project, and solve the effect of failure.

Inactive Publication Date: 2018-12-14
10TH RES INST OF CETC
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  • Abstract
  • Description
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Problems solved by technology

[0008] The above method is only researched on one aspect of the target classic track extraction, and for the target classic track in the complex track data environment...

Method used

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  • Method for extracting target classic track in complex environment
  • Method for extracting target classic track in complex environment
  • Method for extracting target classic track in complex environment

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Embodiment Construction

[0022] refer to figure 1 . According to the present invention, the track data pre-screening module, the track data filtering module, the track data clustering module and the target classic track calculation module are used, and the four modules extract the target classic track in a complex environment. First, the track data pre-screening module is used to read the point sequence in the target track data, and the track data is pre-screened according to the value range constraints of longitude, latitude, altitude, speed and heading, and the corresponding abnormal data items are removed. Point trace data; the track data filtering module filters out low-density point traces, rasterizes latitude and longitude grids, counts the number of traces falling in each latitude and longitude grid, forms a raster grayscale image, and extracts pixel values ​​greater than All point track data in the longitude-latitude grid corresponding to the pixel position of the given threshold, complete th...

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Abstract

The invention provides a method for extracting a target classic track in a complex environment. The method provided by the invention can realize extraction of the target classic track under complex conditions such as strong data randomness, loud noise, different track lengths and large point track interval difference of the target track, and is realized by the following technical scheme: reading target track data, prescreening according to value range constraints with different attributes in the track data, and removing abnormal data items; rasterizing latitude-longitude grids, counting the point track density in each latitude-longitude grid, and extracting all the track data and filtering the track data with relatively high point track density; clustering the filtered track data with a multi-distance threshold DBSCAN clustering algorithm to form a plurality of track clusters; and setting a scanning line for each cluster, sequentially calculating an average value of intersection pointsof the scanning lines and the track to obtain the point tracks in the target classic track, and connecting the point tracks in order to obtain a target classic track extraction result.

Description

technical field [0001] The invention belongs to the technical field of data mining of computer science and technology, and specifically relates to a method for extracting classic track of a target in a complex environment. Background technique [0002] Modern situation processing is becoming more and more complex, with a large number and variety of targets. During the situation processing, the movement of targets that need to be monitored is complex and changeable. How to extract the classic track of the target in a timely and effective manner and improve the timeliness of situation processing is becoming more and more urgent. The track is the actual flight path of the aircraft, and the classic track is the movement track of the classic target in the field of technical reconnaissance and intelligence. The classic track of the target reflects the way and law of the target's movement. Theoretical modeling, analysis and research on the historical track data of the target can b...

Claims

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Application Information

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IPC IPC(8): G01C21/20G06K9/62
CPCG01C21/20G06F18/23
Inventor 彭易锦代翔黄细凤丁洪丽崔莹杨露
Owner 10TH RES INST OF CETC
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