Time-dependent sources identification for transmission lines problems
Abstract
This paper is devoted to introduce an extension
to the Linear Combination of Configuration Fields
(LCCF). This new numerical method was synthesized to
compute the time profile of an electromagnetic source
radiating a specified electromagnetic field in all or part
of the computational domain, for a specified duration.
There is no theoretical limit for this duration; however the
computational time grows significantly as this parameter
is increased. Here, we extend this idea within the
framework of transmission lines network. The main
advantage of the proposed method over the time reversal
method is the possibility to find a source, whatever the
physically acceptable field specified, even in a lossy
medium. The principle of the method is first validated
numerically. Then we prospect the same ideas in a realdata
experiment which shows that the method is ready for
real-life investigations. In that case, it is the impulse
response of the line under test that is used to construct the
matrix for the computation of the unknown source. Then,
this source is injected into the network to check that it
gives the desired signal at a point of the network.
Domains
Engineering Sciences [physics]Origin | Publisher files allowed on an open archive |
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