Please use this identifier to cite or link to this item:
http://hdl.handle.net/10174/2003
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Title: | Impedance Measurements using Genetic Algorithms and Multiharmonic Signals |
Authors: | Janeiro, Fernando M. Ramos, Pedro M. |
Keywords: | Data acquisition genetic algorithms impedance measurement signal processing signal sampling |
Issue Date: | Feb-2009 |
Publisher: | IEEE |
Abstract: | In this paper, a procedure to measure impedances using data-acquisition boards and genetic algorithms is developed.
This approach to impedance measurements has the advantage of being low cost. The multiharmonic acquired waveforms are
characterized using a genetic algorithm that finds the frequency of the signal, which, in turn, is used in a multiple linear least-squares (LS) waveform-fitting algorithmd. The magnitude and phase of the unknown impedance can then be evaluated. A multiharmonic signal is used so that the frequency dependence of the impedance
can be obtained from a single measurement. The measurement results are validated by measurements made with an impedance
analyzer. The main advantage of the genetic algorithm over traditional search methods is its robustness to convergence problems. |
URI: | http://hdl.handle.net/10174/2003 |
Type: | article |
Appears in Collections: | CEM - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica FIS - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica
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