Title :
Characterization of microwave structures using ARMA system identification and TLM method
Author :
Eswarappa, C. ; Hoefer, W.J.R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
Abstract :
A spectral estimation technique based on an autoregressive moving average (ARMA) model has been combined with the transmission line matrix (TLM) method for efficient characterization of microwave structures. A recursive least square covariance ladder algorithm has been used for ARMA modeling. The scattering parameters of a microwave bandpass filter have been obtained directly from the ARMA coefficients, with a computational savings of more than fifty percent.<>
Keywords :
S-parameters; autoregressive moving average processes; band-pass filters; covariance analysis; digital filters; least squares approximations; microwave filters; recursive estimation; spectral analysis; transmission line matrix methods; waveguide filters; ARMA system identification; TLM method; autoregressive moving average model; computational savings; microwave bandpass filter; microwave structures characterization; recursive least square covariance ladder algorithm; scattering parameters; spectral estimation technique; transmission line matrix method; Autoregressive processes; Band pass filters; Covariance matrix; Fourier transforms; Frequency domain analysis; Least squares methods; Microwave theory and techniques; Scattering parameters; System identification; Transmission line matrix methods;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1994. AP-S. Digest
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-2009-3
DOI :
10.1109/APS.1994.407893
