AN OPTIMIZATION APPROACH TO THE FREQUENCY-DOMAIN INVERSE PROBLEM FOR A NONUNIFORM LCRG TRANSMISSION-LINE

Authors
NORGREN M HE SL
Citation
M. Norgren et Sl. He, AN OPTIMIZATION APPROACH TO THE FREQUENCY-DOMAIN INVERSE PROBLEM FOR A NONUNIFORM LCRG TRANSMISSION-LINE, IEEE transactions on microwave theory and techniques, 44(8), 1996, pp. 1503-1507
Citations number
11
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
IEEE transactions on microwave theory and techniques → ACNP
ISSN journal
00189480
Volume
44
Issue
8
Year of publication
1996
Pages
1503 - 1507
Database
ISI
SICI code
0018-9480(1996)44:8<1503:AOATTF>2.0.ZU;2-7
Abstract
The inverse problem for a nonuniform LCRG transmission Line is conside red in the frequency domain, Imbedding equations for the reflection an d transmission coefficients are derived through the concept of wave-sp litting, An optimization approach is applied to reconstruct the Line p arameters as functions of the position using band-limited reflection a nd/or transmission data, Exact and explicit expressions for the gradie nts are derived, and the reconstruction algorithm (based upon a conjug ate gradient method) is tested with both clean and noisy data, The pro blem of the nonuniqueness is also discussed.