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On the modal decomposition of n-coupled transmission lines

✍ Scribed by J. A. Brandâo Faria

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
78 KB
Volume
14
Category
Article
ISSN
0895-2477

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✦ Synopsis

trated by examples. In the GTD-based model, only nine possible discrete values are used to describe the frequency dependence of the scattering center. Consequently, instead of continuous searching of the frequency-dependence parameters ␣ with the use of an iterative approach, which is quite m consuming, only nine possible discrete values are needed to search, which may be easily completed by using the MP method nine times. The complex exponentials of the GTDbased model have no damping factors, so if the frequency dependence of the scattering centers are obtained exactly, then the real parts of the complex exponentials obtained by the MP method would be very close to zero. This characteristic leads to the easy determination of the frequency dependence, the down range, and the amplitude of the scattering center. If high accuracy is required, one may take the results from this technique as initial estimates, then use the maximum-likelihood algorithm to improve them.

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