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System and method of detecting interference of wireless signal based on spectral analysis

A wireless signal and spectrum analysis technology, applied in the field of wireless communication, can solve problems such as simple interference signals and misclassification

Inactive Publication Date: 2014-11-19
XIDIAN UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

These classification methods in the prior art are too simplistic and prone to misclassify interfering signals

Method used

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  • System and method of detecting interference of wireless signal based on spectral analysis
  • System and method of detecting interference of wireless signal based on spectral analysis
  • System and method of detecting interference of wireless signal based on spectral analysis

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Embodiment Construction

[0088] Although the exemplary embodiments are capable of various modifications and adopt alternative forms, the embodiments thereof are given in the drawings as examples and will be described in detail here. However, it should be understood that the exemplary embodiments should not be limited to the specific forms disclosed, on the contrary, the exemplary embodiments are intended to cover all modifications, equivalents, and alternatives falling within the scope of the rights. Throughout the description of the drawings, the same reference numerals denote the same elements.

[0089] It should also be noted that the software implementation aspect of the exemplary embodiment is typically encoded on some forms of program storage media, or implemented on some types of transmission media. The computer-readable medium can be magnetic (e.g., floppy disk or hard drive) or optical (e.g., compact disk read-only memory, or "CDROM"), and can be read-only or random access. Similarly, the trans...

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Abstract

The invention relates to a system and a method of detecting interference of a wireless signal based on spectral analysis. The system comprises a data acquisition unit, a data preprocessing unit, a feature extraction unit, a classification detection unit and a display unit, wherein the data acquisition unit is used for collecting the wireless signal in the environment, carrying out fast Fourier transform FFT on the collected wireless signal to obtain FFT data provided with frequency spectrum information, and transmitting the collected wireless signal to the data preprocessing unit; the data preprocessing unit is used for obtaining time domain information and the frequency spectrum from the collected wireless signal, and transmitting the time domain information and the frequency spectrum to the feature extraction unit; the feature extraction unit is used for carrying out feature extraction on the time domain information and the frequency spectrum which are obtained by the data preprocessing unit, and transmitting the extracted frequency spectrum features to a classification recognition unit; the classification detection unit is used for carrying out training and classification recognition on the frequency spectrum features extracted by the feature extraction unit, and transmitting a result obtained after training and classification recognition to the display unit; the display unit is used for providing an interactive interface for displaying a recognition result.

Description

Technical field [0001] The invention belongs to the field of wireless communication, relates to interference source feature extraction, decision tree-based interference recognition, digital signal processing and pattern classification technology, and specifically relates to a wireless signal interference detection system and method based on spectrum analysis. Background technique [0002] In recent years, with the rapid development of information technology and the continuous increase in the types of communication services, users have increasingly higher requirements for networks. Traditional computer networks can no longer meet this ever-enriching business needs. In order to meet the demand, wireless local area network (WLAN, Wireless Local Area Network) technology has emerged. Because WLAN has the characteristics of flexibility, mobility, fast access, and easy installation and expansion, it has been widely used. However, due to the existence of multiple wireless network devic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00H04W24/00
Inventor 杜军朝刘惠张立勇李曙聪王增祥王探云刘思聪韩路孙继东张应昌李聪奇华腾飞张美清
Owner XIDIAN UNIV
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