OPTIMISATION OF ORTHOGONAL POLYNOMIAL SIGNALS FOR DIRECT IDENTIFICATION OF EQUIVALENT CIRCUIT PARAMETERS |
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| Marek Niedostatkiewicz, Romuald Zielonko |
- Abstract:
- The equivalent electrical circuits (mostly multielement two-terminals) are the common used method of modelling many technical and biological objects. The parameter identification of this kind of circuits is important in testing and diagnosis of many objects. The paper presents a time-domain identification method dedicated mainly for monitoring and diagnosis of anticorrosion coating. The method is based on applying a sequence of polynomials and measuring the object's response at the end of every signal in the sequence. Equivalent circuit parameters are calculated directly from responses using analytical equations, determined by impedance circuit topology. In the paper the optimisation of non-conventional Gegenbauer and Jacobi polynomial signals against the criteria of stationary error and uncertainty propagation is presented.
- Keywords:
- anticorrosion coating diagnosis, parameter identification, non-conventional signals
- Download:
- IMEKO-WC-2009-TC21-258.pdf
- DOI:
- -
- Event details
- Event name:
- XIX IMEKO World Congress
- Title:
Fundamental and Applied Metrology
- Place:
- Lisbon, PORTUGAL
- Time:
- 06 September 2009 - 11 September 2009