|Table of Contents|

Feature Extraction of Moving Target for Short-range PRC-CW Radar

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2008年06期
Page:
759-762
Research Field:
Publishing date:

Info

Title:
Feature Extraction of Moving Target for Short-range PRC-CW Radar
Author(s):
ZHAO ZhaoWANG Zhi-huaSHI Xiang-quan
School of Electronic Engineering and Optoelectronic Technology,NUST,Nanjing 210094,China
Keywords:
pseudo random code pulse compression feature extraction Mellin transform
PACS:
TN957.5
DOI:
-
Abstract:
A multi-component echo signal model of short-range pseudo random code continuous wave(PRC-CW) radar is presented based on target’s multi-points scattering model.An idea to take the moving target’s fine frequency structure as its feature is proposed based on the model presented above.The feature extraction method is illustrated,in which the fine frequency structure around the target’s main Doppler component is obtained by frequency zoom approach on the echo after conventional pulse compression-fast Fourier transform processing.Mellin transform of the frequency structure is calculated to implement the scale invariance property.The theoretical formula and implementation process are elaborated.Experimental results of practical targets indicate that the fine frequency structures of different targets vary obviously which reflect different targets’ structure features.

References:

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Last Update: 2008-12-30