Natural resonance frequency extraction using an early-time and late-time responses combined technique

Author

Wang, DangWei ; Su, Yi ; Ma, XinYi ; Wang, ShaoGang

Author_Institution

Sch. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha

fYear

2004

fDate

22-22 Sept. 2004

Firstpage

201

Lastpage

204

Abstract

In this paper, a pole extraction method using an early-time and late-time responses combined technique is presented. Without the determination of the beginning of the target transient response, the proposed method assumes an ARMA representation to approximate the complete target transient response, and a total least square method is applied to poles extraction. The proposed method is validated using a measured scattering data of a thin wire and a finite cylinder. The processing results show that the proposed method is superior to the KT method and matrix pencil method in an appropriate SNR

Keywords

autoregressive moving average processes; electromagnetic wave scattering; least squares approximations; radar target recognition; radar theory; transient response; ultra wideband radar; ARMA representation; early-late time response combined technique; frequency extraction; natural resonance frequency; pole extraction method; scattering data measurement; target transient response; total least square method; ultrawideband radar; Data mining; Least squares approximation; Least squares methods; Optical scattering; Radar scattering; Resonance; Resonant frequency; Target recognition; Transient response; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrawideband and Ultrashort Impulse Signals, 2004 Second International Workshop

Conference_Location

Sevastopol

Print_ISBN

0-7803-8673-6

Type

conf

DOI

10.1109/UWBUS.2004.1388101

Filename

1388101