Target detection of radar IF signal based on FCM clustering

YUE Zhi-xin; CHEN Xiao-nan; SUO Ji-dong

doi:10.16411/j.cnki.issn1006-7736.2015.03.022

Journal of Dalian Maritime University >

2015 , Vol. 41 >Issue 3: 124 - 127

DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2015.03.022

Target detection of radar IF signal based on FCM clustering

YUE Zhi-xin ,
CHEN Xiao-nan ,
SUO Ji-dong

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（Information Science and Technology College, Dalian Maritime University, Dalian 116026,China）

Received date: 2014-12-09

Revised date: 2015-03-15

Online published: 2015-03-17

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Abstract

Aiming at detection deficiency of weak target signal under the background of strong clutters for maritime radar, a new algorithm based on FCM clustering was put forward. Firstly, the radar IF signal was decomposed by wavelet, and the low frequency coefficient was extracted as cluster sample. Then FCM clustering was used to analyze the same pulse echo adjacent unit. Finally, the targets were detected by setting threshold. Simulation results show that this way can improve the signal-to-noise ratio of output and effectively detect target signal.

Key words： target detection; radar intermediate-frequency signal; the Doppler frequency shift; FCM clustering

Cite this article

YUE Zhi-xin , CHEN Xiao-nan , SUO Ji-dong . Target detection of radar IF signal based on FCM clustering[J]. Journal of Dalian Maritime University, 2015 , 41(3) : 124 -127 . DOI: 10.16411/j.cnki.issn1006-7736.2015.03.022

References

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