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Aircraft type recognition method based on target flight path

A technology of aircraft type identification and target track, which is applied in the field of aircraft type identification based on target track, can solve the problems of difficult realization of identification methods, great impact on image quality, and difficulty in capturing clear images, so as to reduce complexity , Accelerate the speed of recognition, the effect of fast processing

Active Publication Date: 2018-11-30
NAT UNIV OF DEFENSE TECH
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AI Technical Summary

Problems solved by technology

[0006] 3. It is also difficult to take clear images when the aircraft is running at high speed;
[0007] 4. Natural factors such as weather have a greater impact on image quality
[0008] These challenges make the recognition method based on contour information difficult to implement in practical applications

Method used

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  • Aircraft type recognition method based on target flight path
  • Aircraft type recognition method based on target flight path
  • Aircraft type recognition method based on target flight path

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Embodiment Construction

[0041] The invention provides a method for identifying aircraft types based on target tracks, comprising the following steps:

[0042] S1, collect the track information of different types of aircraft (comprising detection time t, longitude Lng, latitude Lat, altitude h, flight speed v, course information di, sensor signal type sg and mark model lb, wherein mark model lb is combined Aircraft model categories manually marked by experts’ experience) to establish a sample library;

[0043] S2. Based on the track information collected in S1, calculate the maximum speed, cruising speed, maximum acceleration or / and maximum climb rate of aircraft of different types;

[0044] S3, the collected track information (longitude Lng, latitude Lat, altitude h, flight speed v, course information di, sensor signal type sg) and the maximum speed, cruise speed, maximum acceleration or / and maximum speed calculated in S2 Climb rate is used as the identification feature of model identification, and ...

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Abstract

The invention provides an aircraft type recognition method based on target flight path. The aircraft type recognition method based on the target track includes the steps that first, the flight path information of different types and classes of aircrafts is collected to establish a sample database; the maximum speed, cruise speed, maximum acceleration and maximum climbing rate of the different types of aircrafts are calculated based on the flight path information collected in S1; then the collected flight path information as well as the maximum speed, the cruise speed, the maximum accelerationand the maximum climbing rate obtained by calculating in S2 are served as recognition features of the aircraft type recognition to train a machine learning classifier; and finally, recognition features of an aircraft target of a to-be-identified aircraft type are obtained and classified by the trained classifier in S3, and the classification result is the aircraft type and class of the aircraft target. According to the aircraft type recognition method based on the target flight path, the defect of seeking contour invariant feature quantity is overcome, and a machine learning classification algorithm is used for aircraft type recognition.

Description

technical field [0001] The invention belongs to the technical field of aerial target recognition, in particular to a method for identifying aircraft types based on target tracks. Background technique [0002] With the increase of the types and numbers of air vehicles, the amount of information that air traffic management needs to process is increasing, and aircraft type identification, as the core technology of air traffic management, is also one of the hot spots of academic research. [0003] At present, in order to achieve a better recognition effect, the work of model recognition still needs to combine a lot of manual experience, which consumes a lot of time and human resources. The research on automatic model identification is still in the exploratory stage, and most of the existing work is based on graphic image processing technology. The image-based aircraft recognition method is mainly to find the feature quantities that are approximately invariant in the process of ...

Claims

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Application Information

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IPC IPC(8): G06K9/62G06K9/66
CPCG06V30/194G06F18/241
Inventor 刘忠黄红蓝冯旸赫黄金才程光权陈超陈丽王涛
Owner NAT UNIV OF DEFENSE TECH
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