Specific emitter identification method based on Allan variance

An identification method and radiation source technology, which is applied in the field of individual identification of radiation sources based on Allan variance, can solve problems such as large noise influence, and achieve the effect of enhancing effectiveness

Active Publication Date: 2018-06-29
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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Problems solved by technology

However, these two methods have better results when the amount of data is large, and noise has a greater impact on it.

Method used

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  • Specific emitter identification method based on Allan variance
  • Specific emitter identification method based on Allan variance
  • Specific emitter identification method based on Allan variance

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Experimental program
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Embodiment

[0027] The purpose of this embodiment is to extract fingerprint features from different radiation sources, realize individual identification, and simulate the success rate of identification. The data in this embodiment comes from four return channel satellite terminals, denoted as: E i ,i=1,2,3,4. Data were received by an Agilent E3238S signal detection system. The transmission signal adopts QPSK modulation method, and the transmission rate is 2MBoud. After receiving, convert the radio frequency signal to 70M intermediate frequency. The sampling rate is 400MHz, and the signal-to-noise ratio of the received signal is about 35dB. To control for variables, data were collected under laboratory conditions. For each terminal, 200 bursts of data are collected to verify the proposed algorithm. It should be noted that these four terminals are produced by the same manufacturer, and E1 and E2 belong to the same batch of products with different serial numbers, and E3 and E4 also belo...

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Abstract

The invention belongs to the technical field of communication, and particularly relates to a specific emitter identification method based on an Allan variance. According to the specific emitter identification method based on the Allan variance, different nonlinear characteristics brought by a nonlinear device in an actual radiation source are utilized. In fact, different radiation sources are taken as different nonlinear systems in the method, and the Allan variance is used for extracting characteristics of the nonlinear systems based on the principle, so that different systems are identified.An Allan standard deviation obtained by calculation under different correlation time has different meanings, a characteristic vector is formed by using the Allan standard deviation under three correlation time, and the identification effectiveness is enhanced.

Description

technical field [0001] The invention belongs to the technical field of communication, and specifically relates to an Allan variance-based radiation source individual identification method. Background technique [0002] Since the specific emitter identification (SEI) technology was proposed in the 1960s, it has received widespread attention and has become a research hotspot in the fields of cognitive radio, network security, and electronic support systems. . The individual identification technology of communication radiation sources uses the individual features extracted from communication signals to realize the individual identification of different radiation sources. This technology is often used in military and civilian spectrum management, and it is also of great significance for strengthening wireless network security. Existing individual radiation source identification methods can be divided into three categories: signal-based transient characteristics, signal-based s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00G06K9/00
CPCH04B17/00G06F2218/12
Inventor 朱胜利马俊虎甘露廖红舒
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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