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Novel communication radio station individual identification method under complex environment

A complex environment and identification method technology, applied in the field of communication station identification, can solve the problems of high complexity of identification algorithm and difficulty in feature extraction, etc., and achieve the effect of improving subtlety, small amount of calculation, and low complexity

Inactive Publication Date: 2013-11-20
HARBIN ENG UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to provide a new communication station individual identification method in a complex environment that can overcome the high complexity of the communication station identification algorithm and the difficulty in feature extraction under low signal-to-noise ratio in the prior art

Method used

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  • Novel communication radio station individual identification method under complex environment
  • Novel communication radio station individual identification method under complex environment
  • Novel communication radio station individual identification method under complex environment

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Embodiment Construction

[0042] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0043] combine Figure 1~3 , the purpose of the present invention is to propose a new method for individual identification of communication stations in a complex environment, which can overcome the problems of high complexity of identification algorithms for communication stations in the prior art and difficult feature extraction under low signal-to-noise ratios, After extracting the new fractal box dimension eigenvector of the communication station signal, as the subtle feature of the station signal, and then using the neural network to identify it, it can achieve the effect of accurately identifying the communication station in a complex environment with a low signal-to-noise ratio.

[0044] The purpose of the present invention is achieved like this:

[0045] (1.1) First, the same communication signals transmitted by different communication stations are resampl...

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Abstract

An aim of the invention is providing a novel communication radio station individual identification method under a complex environment. The method comprises the following steps: carrying out resampling on a same kind of communication signal emitted by different communication radio stations, converting the communication signal into a discrete time signal sequence, carrying out phase space reconstruction on a discrete communication signal time sequence of resampling, converting the signal to be under different reconstruction phase spaces so as to capture different reconstruction phase space characteristics, by utilizing a new fractal box dimension, calculating fractal box dimensions under different reconstruction phase spaces, obtaining a fractal box dimension characteristic vector, and by utilizing a nerve network, classifying obtained vector space so as to achieve a purpose of identifying different communication radio stations. According to the invention, under a complex changeable environment, small difference of different communication radio stations is identified.

Description

technical field [0001] The invention relates to a feature recognition method in the technical field of communication station recognition. Background technique [0002] In recent years, identification of communication stations has become an important topic in the field of communication investigation. Among them, the extraction of subtle features of communication stations plays a vital role in station identification. At present, identifying different radio stations with the same working mode and the same model has become a difficult point in the individual identification of communication stations. It mainly judges which station the signal comes from based on the slight differences in the hardware of each station and the subtle characteristics of the transmitted signal that are different from other individuals under the influence of different emission environment noises, so as to realize the tracking of the communication station and provide for communication. The electronic r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/00H04L25/02H04B17/30
Inventor 李一兵李靖超林云叶方葛娟康健李一晨田雪宜
Owner HARBIN ENG UNIV
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