Space Debris Target Tracking Method and Device Based on Extended Random Finite Set of Markers

A space debris, limited set technology, applied in the field of multi-target tracking, can solve the problems of inability to output target track, poor target discrimination ability, etc., to reduce the amount of calculation and storage, improve the detection ability, and avoid the effect of data association.

Active Publication Date: 2021-05-07
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

[0005] Based on this, it is necessary to address the above technical problems and provide a space debris target tracking method and device based on a random finite set of extended markers that can solve the problem that the existing space debris target tracking algorithm cannot output the target track and the target discrimination ability is poor

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  • Space Debris Target Tracking Method and Device Based on Extended Random Finite Set of Markers
  • Space Debris Target Tracking Method and Device Based on Extended Random Finite Set of Markers
  • Space Debris Target Tracking Method and Device Based on Extended Random Finite Set of Markers

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[0068] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0069] In one embodiment, such as figure 1 As shown, a space debris target tracking method based on a random finite set of extended markers is provided, including the following steps:

[0070] Step 102, construct the state space of the space debris target according to the motion feature space of the space debris target and the defined label space.

[0071] The state space includes: a collection of nascent goal states and a collection of persistent goal states. The nascent target refers to the space debris that exists at the current moment and did not exist at the previou...

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Abstract

This application relates to a space debris target tracking method and device based on a random finite set of extended markers. The method includes: constructing the state space of the space debris target according to the motion feature space of the space debris target and the defined label space, constructing the observation set of the observation space according to the position information of the target in the observation space, and constructing the observation set according to the state space and the generalized label multi- According to the Bernoulli random finite set distribution, the prediction model of the space debris target at the next moment is obtained, and the update model of the space debris target at the next moment is obtained according to the observation set and the prediction model, and the trajectory of the space debris target is obtained according to the prediction model and the update model The iterative equation performs iterative calculation according to the track iterative equation to obtain the target track of the space debris target. This method is used to realize the track output of the space debris target and improve the accuracy of the track output.

Description

technical field [0001] The present application relates to the technical field of multi-target tracking, in particular to a space debris target tracking method and device based on a random finite set of expanded markers. Background technique [0002] With the continuous development of comprehensive science and technology, countries are paying more and more attention to the development and utilization of space resources. Space has become another new exploration field for human beings after land, sea and air. Similar to the traditional field, due to the initial reckless space development model, the problem of space pollution has become increasingly prominent. According to data from the European Space Agency, from the first satellite launch in 1957 to January 2019, a total of about 5,450 launch activities, a total of about 8,950 satellites were launched, and about 5,000 are still in orbit, of which about 5,000 are still in orbit. At the same time, there are about 34,000 pieces ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/00
CPCG01C21/00
Inventor 牛照东孙权丁丁李振
Owner NAT UNIV OF DEFENSE TECH
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