## A method of using orthogonal shifted Legendre polynomials for identifying the parameters of a process whose behaviour can be modelled by a linear di$erential equation with time-varying coeficients in the form ofjinite-order polynomials is presented. It is based on the repeated integration of the
Analysis of linear time-varying systems by shifted legendre polynomials
โ Scribed by Ming-Jong Tsai; Cha'o-Kuang Chen; Fan-Chu Kung
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 389 KB
- Volume
- 318
- Category
- Article
- ISSN
- 0016-0032
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โฆ Synopsis
This paper analyses the linear time-varying system by the shifted
Legendre polynomials expansion. Using the operational matrix for integrating the shgted Legendre polynomials, the dynamic equation of a linear time-varying system is reduced to a set of simultaneous linear algebraic equations. The coefficients of the shifted Legendre polynomials expansion can be determined by using the least-squares method. An example is given to demonstrate the accuracy of shqted Legendre polynomials expansion of jinite terms and it is compared with the results of the Laguerre method.
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