A New Kind of FRFT Analysis Method for Multi-Component LFM Signals

Qiang Guo; Ya Jun Li; Chang Hong Wang

doi:10.4028/www.scientific.net/AMR.204-210.973

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 204-210A New Kind of FRFT Analysis Method for...

A New Kind of FRFT Analysis Method for Multi-Component LFM Signals

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.

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Periodical:

Advanced Materials Research (Volumes 204-210)

Pages:

973-978

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.204-210.973

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Online since:

February 2011

Authors:

Qiang Guo, Ya Jun Li, Chang Hong Wang

Keywords:

Feature Extraction, ICA, Multi-Component LFM Emitter Signal, Time-Frequency Analysis (TFA)

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