Radio Signal Automatic Modulation Classification based on Deep Learning and Expert Features

Tianyao Yao, Yuan Chai, Shuai Wang, Xiaqing Miao, Xiangyuan Bu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

16 Citations (Scopus)

Abstract

Automatic modulation classification (AMC) becomes more and more important in the electronic reconnaissance. Recently, lots of researchers focus on deep learning architecture based AMC approach but the recognition rate of WBFM and QAM is less than desirable. In this paper, we proposed a joint AMC model of two expert features and CNN-LSTM networks. Before entering the deep learning network, the un-classified signal is first detected whether WBFM or not by the maximum of zero-center normalization amplitude spectrum density. Then the signal which is not WBFM will be inputted to the CNN-LSTM network, while QAM16 and QAM64 are regarded as the same class here. Finally, Haar-wavelet transform crest searching is used to classify QAM16 and QAM64. Compared with former CNN-LSTM architecture, the results of the experiment and deduction show the average recognition rate of the proposed model is increased by 11.5% at 10 dB SNR.

Original languageEnglish
Title of host publicationProceedings of 2020 IEEE 4th Information Technology, Networking, Electronic and Automation Control Conference, ITNEC 2020
EditorsBing Xu, Kefen Mou
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1225-1230
Number of pages6
ISBN (Electronic)9781728143903
DOIs
Publication statusPublished - Jun 2020
Event4th IEEE Information Technology, Networking, Electronic and Automation Control Conference, ITNEC 2020 - Chongqing, China
Duration: 12 Jun 202014 Jun 2020

Publication series

NameProceedings of 2020 IEEE 4th Information Technology, Networking, Electronic and Automation Control Conference, ITNEC 2020

Conference

Conference4th IEEE Information Technology, Networking, Electronic and Automation Control Conference, ITNEC 2020
Country/TerritoryChina
CityChongqing
Period12/06/2014/06/20

Keywords

  • CNN
  • LSTM
  • automatic modulation classification
  • electronic reconnaissance
  • expert feature

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