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Electromagnetic signal open set identification method

An electromagnetic signal and identification method technology, applied in the field of signal processing, can solve problems such as poor performance and low discrimination accuracy

Active Publication Date: 2019-06-11
36TH RES INST OF CETC
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Problems solved by technology

[0004] In view of the above analysis, the present invention aims to provide an electromagnetic signal open-set identification method to solve the problems of low discrimination accuracy and poor performance of existing open-set identification methods

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  • Electromagnetic signal open set identification method
  • Electromagnetic signal open set identification method
  • Electromagnetic signal open set identification method

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Embodiment Construction

[0050] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and together with the embodiments of the present invention are used to explain the principle of the present invention and are not intended to limit the scope of the present invention.

[0051] A specific embodiment of the present invention discloses a method for open-set identification of electromagnetic signals, the flow chart of which is as follows figure 1 As shown, it specifically includes the following steps:

[0052] Step S1: Obtain the electromagnetic signal sample set and the category to which each electromagnetic signal sample belongs;

[0053] By selecting characteristic parameters that can reflect the properties of the electromagnetic signal, the electromagnetic signal is processed accordingly to obtain the electromagnetic signal sample set.

[0054] Preferably, ...

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Abstract

The invention relates to an electromagnetic signal open set identification method, belongs to the technical field of signal processing, and solves the problems of low discrimination accuracy and poorperformance of an existing open set identification method. The method comprises the following steps: acquiring an electromagnetic signal sample set and the category of each electromagnetic signal sample;dividing the electromagnetic signal sample set into a training set and a test set;training the convolutional neural network by using the training set, and evaluating the trained convolutional neural network by using the test set to obtain an optimal convolutional neural network; constructing a characteristic parameter weibull distribution model according to the optimal convolutional neural network; and carrying out open set identification on the unknown electromagnetic signal by utilizing the optimal convolutional neural network, and judging the accuracy of an identification result according to the constructed characteristic parameter weibull distribution model. The method effectively improves the accuracy of electromagnetic signal open set recognition.

Description

technical field [0001] The invention relates to the technical field of signal processing, in particular to an electromagnetic signal open-set identification method. Background technique [0002] With the rapid development of science and technology, electromagnetic signal recognition has a wide range of applications and important research value in national defense security, smart transportation, and security industries. Electromagnetic signal recognition in the general sense refers to giving the recognition result of the input signal by calculating the similarity between the input electromagnetic signal sample and the samples in the known signal library. Therefore, there are two types of recognition problems: 1) Close Set electromagnetic signal recognition without rejection, that is, it is assumed that the input electromagnetic signal sample must belong to an individual in the signal library; 2) Open set with rejection ( Open Set) identification, that is, to first judge whet...

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Application Information

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IPC IPC(8): G06K9/00G06K9/62G06N3/04G06N3/08
Inventor 周华吉杨小牛郑仕链
Owner 36TH RES INST OF CETC
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