A new kind of FRFT analysis method for multi-component LFM signals

  • Qiang Guo*
  • , Ya Jun Li
  • , Chang Hong Wang
  • *Corresponding author for this work

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

Abstract

To effectively detect and recognize multi-component Linear Frequency-Modulated (LFM) emitter signals, a multi-component LFM emitter signal analysis method based on the complex Independent Component Analysis(ICA) which was combined with the Fractional Fourier Transform(FRFT) was proposed. The idea which was adopted to this method was the time-domain separation and then time-frequency analysis, and in the low SNR cases, the problem which is generally plagued by noised of feature extraction of multi-component LFM signal based on FRFT is overcame. Compared to the traditional method of time-frequency analysis, the computer simulation results show that the proposed method for the multi-component LFM signal separation and feature extraction was better.

Original languageEnglish
Title of host publicationAdvanced Research on Industry, Information System and Material Engineering
Pages973-978
Number of pages6
DOIs
StatePublished - 2011
Externally publishedYes
Event2011 International Conference on Industry, Information System and Material Engineering, IISME2011 - Guangzhou, China
Duration: 16 Apr 201117 Apr 2011

Publication series

NameAdvanced Materials Research
Volume204-210
ISSN (Print)1022-6680

Conference

Conference2011 International Conference on Industry, Information System and Material Engineering, IISME2011
Country/TerritoryChina
CityGuangzhou
Period16/04/1117/04/11

Keywords

  • Feature extraction
  • ICA
  • Multi-component LFM emitter signals
  • Time-frequency analysis

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