A Target Tracking Method for Wireless Sensor Networks Based on Fisher Information Distance

A wireless sensor and target tracking technology, applied in the field of multi-sensor management, can solve problems such as increasing the amount of calculation

Active Publication Date: 2021-02-26
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the existing methods based on information theory, the analytical expression of the probability distribution difference under many information measurement methods cannot be obtained. At this time, the Monte Carlo method is needed to obtain an approximate solution, and this calculation method will increase a lot of computation

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  • A Target Tracking Method for Wireless Sensor Networks Based on Fisher Information Distance
  • A Target Tracking Method for Wireless Sensor Networks Based on Fisher Information Distance
  • A Target Tracking Method for Wireless Sensor Networks Based on Fisher Information Distance

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Embodiment Construction

[0059] Aiming at the target tracking-oriented sensor management problem, the invention studies a target tracking-oriented sensor management method. In view of the fact that the sensor measurement information of different nodes has different information quality, the present invention measures the measurement information of different sensors in the target tracking process by introducing the Fisher information distance, and calculates the distance between the actual measurement and the predicted measurement. Information distance, select the sensor with large Fisher information distance to track the target, thus improving the tracking accuracy of the system. The invention has theoretical guiding significance and practical value for improving the concealment of the tracking system and the service life of the sensor network in some specific scenarios.

[0060] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings,...

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Abstract

The invention provides a wireless sensor network target tracking method based on Fisher information distance. And after the target enters the monitoring area and is detected, the tracking system is activated to start tracking the target. In order to improve the tracking precision of the system, the use of more sensors to track a target is a conventional thought. However, the use of excessive sensors on the one hand consumes excessive energy and on the other hand is found by enemies due to the radiation of excessive energy so as to be locked in position. In order to solve the problems of radiation energy and tracking precision, on the basis that the number of sensors is not changed, a more efficient sensor is selected to track a target, and the tracking precision is improved. The method hastheoretical guidance significance and practical value for improving the concealment of a tracking system and prolonging the service life of the sensor network in some specific scenes.

Description

technical field [0001] The invention belongs to the field of multi-sensor management, and relates to a wireless sensor network target tracking method based on Fisher information distance. Background technique [0002] The multi-sensor management technology based on target tracking has a wide range of applications in both military and civilian applications, such as radar target tracking, battlefield environment monitoring, and automatic driving. In the battlefield environment, how to quickly identify the enemy target when the target appears and track the target in real time, and how to improve one's own concealment, so as not to be found when the target is tracked, these are the keys to the outcome problems, and the solutions to these problems all rely on multi-sensor management technology. In addition, in the civilian field, multi-sensor management technology also plays a vital role. For example, in the field of automatic driving, how to identify whether the passers-by in f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/02H04W4/029H04W4/38H04W64/00H04W84/18
CPCH04W4/025H04W64/00H04W84/18H04W4/029H04W4/38
Inventor 刘妹琴怀天一郑荣濠张森林何衍樊臻
Owner ZHEJIANG UNIV
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