Multi-target passive tracking method based on wireless sensor network

A sensor network and wireless sensor technology, which is applied in the field of multi-target passive tracking based on wireless sensor networks, can solve problems such as being unable to cope with indoor environments, and achieve the effects of ensuring real-time performance, appropriate calculation complexity, high precision and stability

Inactive Publication Date: 2013-06-26
BEIJING INST OF SPACECRAFT SYST ENG +1
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Problems solved by technology

This type of method has simple system configuration and high tracking accuracy, but there are still some limiting factors: First, the measurement model used in the existing model-based radio frequency tomography method is only suitable for outdoor single-target environments, and cannot deal with indoor environments, especially Indoor environme

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  • Multi-target passive tracking method based on wireless sensor network
  • Multi-target passive tracking method based on wireless sensor network
  • Multi-target passive tracking method based on wireless sensor network

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Embodiment Construction

[0045] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:

[0046] A multi-target passive tracking method based on wireless sensor networks is based on a statistical histogram-based measurement model and based on Multi-Bernoulli (multi-target-Multi-Bernoulli) filtering theory to establish a multi-target wireless tracking method suitable for indoor environments. The source tracking method includes: (1) Based on the electromagnetic wave propagation theory, pattern recognition theory, and machine learning theory, and through processing, simulating, and analyzing a large number of typical scene experimental data, an indoor measurement model based on statistical histograms is established; (2) Based on the aforementioned measurement model and according to the Multi-Bernoulli filter theory, design and implement multi-target detection and tracking. figure 1 The overall flow chart of this tracking method is given, w...

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Abstract

The invention relates to a multi-target passive tracking method based on a wireless sensor network. The technical characteristics are that the multi-target passive tracking method based on the wireless sensor network comprises the following steps that: (1) a measurement model is established according to the receiving signal intensity of the sensor network; (2) according to the established measurement model from the step (1), the variable multi-target positioning and tracking is realized under the indoor environment through the combination of a multi-target Bernoulli filter algorithm and a particle filter algorithm. The multi-target passive tracking method based on the wireless sensor network provided by the invention is reasonable in design; the established measurement model has high accuracy under the indoor environment, and the model forecast value is approximate to the actual observation value; the target detecting and tracking algorithm has high accuracy and stability, and can detect and track a plurality of targets; and the measurement model and the target algorithm are appropriate in calculation complexity, and thus guaranteeing the running real-time performance of the tracking system.

Description

technical field [0001] The invention belongs to the technical field of wireless sensors, in particular to a multi-target passive tracking method based on a wireless sensor network. Background technique [0002] In recent years, the development of information technology and network technology has brought huge and profound changes to various fields of human society and national economy. The information network represented by the Internet has a greater and greater impact on people's lifestyles, and will continue to develop and increase its influence in various fields in the future. Wireless Sensor Networks (WSN) is a new type of network technology that integrates sensor technology, MEMS technology, wireless communication technology and distributed information processing technology. Through the collaboration between nodes, it senses, collects and processes the information of the environment or monitoring objects in the monitoring area in real time, and transmits the processed i...

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Application Information

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IPC IPC(8): G01S5/00G01S19/31H04W16/20
Inventor 刘崇华杨波张弓刘航门爱东薛剑飞黎杨
Owner BEIJING INST OF SPACECRAFT SYST ENG
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