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Multi-sensor cooperative tracking method based on Renyi information increment

A multi-sensor and sensor technology, applied in the field of multi-sensor management, can solve the problems of affecting the target tracking effect, lack of flexibility and universality, and achieve the effect of enhancing anti-interference ability, reducing total radiation power, and realizing radio frequency stealth

Pending Publication Date: 2022-08-05
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods only compare a certain eigenvalue of the probability density function for the calculation of the information increment before and after the measurement, which is not flexible and universal, thus affecting the target tracking effect

Method used

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  • Multi-sensor cooperative tracking method based on Renyi information increment
  • Multi-sensor cooperative tracking method based on Renyi information increment
  • Multi-sensor cooperative tracking method based on Renyi information increment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Please refer to figure 1 and figure 2 , figure 1 It is a flowchart of a multi-sensor collaborative tracking method based on Rényi information increment provided by an embodiment of the present invention; figure 2 It is a schematic flowchart of a multi-sensor collaborative tracking method based on Rényi information increment provided by an embodiment of the present invention. As shown in the figure, the multi-sensor collaborative tracking method based on Rényi information increment in this embodiment includes:

[0046] Step 1: Establish target motion model and sensor measurement model;

[0047] In this embodiment, the target motion model and the sensor measurement model are as follows:

[0048]

[0049] in, represents the target state vector at time k, (x k ,y k ) represents the position of the target in the space coordinate system at time k, Represents the speed of the target in the corresponding direction at time k, T represents the transposition, F k-1...

Embodiment 2

[0087] In this embodiment, the performance of the multi-sensor cooperative tracking method based on the Rényi information increment of the first embodiment is described by means of a simulation and comparison experiment.

[0088] In this embodiment, the multi-sensor collaborative tracking method based on Rényi information increment is compared with the multi-sensor tracking fusion algorithm and single-sensor tracking filtering algorithm that directly perform multi-source information comprehensive processing without sensor management.

[0089] See image 3 , image 3 are schematic diagrams of sensor working states of different tracking algorithms provided by the embodiments of the present invention, from image 3 It can be seen that each sampling point of the multi-sensor tracking and fusion algorithm requires all the sensors to be turned on, while the method of the present invention only requires one sensor to be turned on at each sampling point. Therefore, the method of the...

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Abstract

The invention relates to a multi-sensor cooperative tracking method based on Renyi information increment. The method comprises the following steps: step 1, establishing a target motion model and a sensor measurement model; step 2, obtaining Renyi information increment of each sensor at the current moment according to predicted measurement values of different sensors at the current moment; 3, selecting the sensor corresponding to the maximum value in the Renyi information increment as a tracking sensor at the current moment; 4, acquiring a real measurement value of the tracking sensor at the current moment, performing target state estimation through a Kalman filtering algorithm to obtain a target state estimation result at the current moment, and sharing the target state estimation result with other sensors; and 5, repeating the steps 2-5, and carrying out circulation at the next moment so as to realize real-time tracking of the target. According to the multi-sensor cooperative tracking method, on the premise that the target tracking precision is guaranteed, the working number of the sensors is reduced, namely, the electromagnetic radiation of a multi-sensor tracking system is reduced, radio frequency stealth is achieved, and the safety of the system is enhanced.

Description

technical field [0001] The invention belongs to the field of multi-sensor management, in particular to a multi-sensor cooperative tracking method based on Rényi information increment. Background technique [0002] Multi-sensor management technology is an important research direction of multi-source cooperative detection and information fusion based on target tracking. Modern warfare is gradually networked and informatized. A single sensor detection device cannot meet the requirements for target tracking performance in the complex electromagnetic environment of the battlefield. The application of multi-sensor collaborative detection is gradually widespread. Information fusion technology is to comprehensively analyze and process the detection data of multiple sensors to obtain a more comprehensive and accurate target state estimation, thereby improving the target tracking performance of the entire detection system. However, with the increase of the number of sensors, the prob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F111/08G06F119/10
CPCG06F30/20G06F2111/08G06F2119/10Y02D30/70
Inventor 刘峥周硕谢荣冉磊
Owner XIDIAN UNIV
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