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Passive time difference positioning system optimization station distribution method based on improved grey wolf optimization algorithm

A technology of time difference positioning and optimization algorithm, applied in wireless communication, electrical components and other directions, can solve the problems of high positioning accuracy of target area, many adjustment parameters of genetic algorithm, slow convergence speed, etc., to improve the overall positioning accuracy, fast convergence speed, Adjusting the effect of fewer parameters

Active Publication Date: 2019-08-23
XIDIAN UNIV
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Problems solved by technology

The disadvantage of this method is that in the actual station deployment process, due to the limitation of geographical location, it may not be able to meet the location requirements of the regular station deployment, and the positioning accuracy of the target area under the regular station deployment is not necessarily the highest.
The disadvantage of this method is that multiple models need to be established for station layout optimization, the solution is more complicated, and the genetic algorithm needs to adjust more parameters, and the convergence speed is slower

Method used

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  • Passive time difference positioning system optimization station distribution method based on improved grey wolf optimization algorithm
  • Passive time difference positioning system optimization station distribution method based on improved grey wolf optimization algorithm
  • Passive time difference positioning system optimization station distribution method based on improved grey wolf optimization algorithm

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Embodiment Construction

[0033] The embodiments and effects of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0034] Step 1, establishing the optimal station layout model of the passive time-difference positioning system;

[0035] The specific steps are:

[0036] First, set the independent variable of the optimal station layout model of the passive time-of-flight positioning system as the location of the receiving base station, and the number of receiving base stations is n; the station is deployed in three-dimensional space, and the coordinates of the receiving base station are: s p =[x p ,y p ,z p ] T ,p=1,...,n, the position of the target radiation source is x=[x,y,z] T , the Euclidean distance from the target radiation source to the receiving base station is r p =||x-s p ||, p=1,...,n, ||·|| represents a modulo operation. Then in the three-dimensional space, the independent variable of the optimized station layout model of t...

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Abstract

The invention discloses a passive time difference positioning system optimization station distribution method based on an improved grey wolf optimization algorithm. The method comprises: converting the station distribution problem of the passive time difference positioning system into a minimum value problem for solving the objective function; establishing an optimized station distribution model on the basis of a passive time difference positioning system; and solving the model by using an improved grey wolf optimization algorithm, and the basic flow of the solution is as follows: establishingan optimal station distribution model of the passive time difference positioning system, and solving the model by using an M-GWO algorithm, so that the base station position when the target functionvalue of the model is minimum is the optimal station distribution position of the positioning system. The method is used for solving the higher-precision station arrangement position of the passive time difference positioning system for the target area, the optimal station arrangement position in any station arrangement range can be solved, and universality is achieved.

Description

technical field [0001] The invention belongs to the technical field of station layout of a positioning system, and further relates to a method for optimal station deployment of a passive time-difference positioning system based on an improved gray wolf optimization algorithm. The present invention can be used to solve the optimal deployment position of a passive time-difference positioning system for a specified target area. Background technique [0002] In the modern information warfare environment, reconnaissance and positioning of targets is an important research content in the field of electronic warfare. Reconnaissance of the target position in advance is conducive to early warning of potential threats, which has an important guiding role in protecting our targets and attacking enemy targets. At present, the positioning system can be divided into active positioning system and passive positioning system according to whether its receiving station transmits electromagneti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00
CPCH04W64/006
Inventor 罗明夏伟付亮赵美霞
Owner XIDIAN UNIV
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