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Radiation source identification method based on multi-feature fusion

A multi-feature fusion and identification method technology, applied in the field of radiation source identification based on multi-feature fusion, can solve the problems of high accuracy requirements of acquisition equipment, inability to achieve effective identification of radiation sources, low sampling rate and sensitivity, and improve the accuracy of identification. rate and robustness, elimination of negative effects, effect of effective identification

Active Publication Date: 2019-09-03
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0009] However, these methods still have high requirements on the accuracy of the acquisition equipment, and in the case of low sampling rate and sensitivity of the sampling equipment, the effective identification of radiation sources cannot be achieved

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  • Radiation source identification method based on multi-feature fusion
  • Radiation source identification method based on multi-feature fusion
  • Radiation source identification method based on multi-feature fusion

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[0035] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings, so that those skilled in the art can better understand the present invention. It should be noted that in the following description, when detailed descriptions of known functions and designs may dilute the main content of the present invention, these descriptions will be omitted here.

[0036] figure 1 It is a flow chart of a specific embodiment of the radiation source identification method based on the multi-feature fusion radiation source identification method of the present invention.

[0037] In this example, if figure 1 As shown, the radiation source identification method based on the multi-feature fusion radiation source identification method of the present invention includes the following steps:

[0038] Step S1: Extract the sample signal of the known radiation source

[0039] For I (category) known radiation sources, each radiation source extrac...

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Abstract

The invention discloses a radiation source identification method based on multi-feature fusion. Aiming at the problem that the radiation source identification accuracy is low, and on the basis of an existing radiation source identification method based on rectangular integral bispectrum and principal component analysis, the invention provides a radiation source identification method based on the fusion of a box dimension after local mean decomposition (LMD) and a rectangular integral bispectrum (SIB) after dimension reduction. Therefore, the fusion feature formed by the SIB feature and the time-frequency analysis feature is used as the radiation source feature for identification, the negative influence caused by signal waveform abrupt change is eliminated, and the identification accuracy and robustness are remarkably improved. Meanwhile, under the condition that the sampling rate and the sensitivity of the sampling equipment are lower, the effective identification of the radiation source can also be achieved.

Description

technical field [0001] The invention belongs to the technical field of radiation source identification, and more specifically relates to a radiation source identification method based on multi-feature fusion. Background technique [0002] Radiation source identification technology is of great significance to improving the security of wireless communication systems and improving the ability of military communication reconnaissance and countermeasures. By extracting the difference characteristics of the hardware equipment produced by the radiation source (transmitter) during the design and production process, it is possible to distinguish which radiation source the received signal comes from. However, it is very difficult to extract the subtle individual differences of these radiation sources, making the research on individual radiation source identification technology a very challenging topic. [0003] Square Integral Bispectra (SIB for short) is a third-order spectrum that ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62G06K9/00
CPCG06F2218/08G06F2218/12G06F18/253
Inventor 金燕华马爽阎啸潘文分
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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