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Design of Optimal L1 Stable IIR Digital filter using Hybrid Optimization Algorithm
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 38 - Number 2 |
| Year of Publication: 2012 |
| Authors: Ranjit Kaur, Manjeet Singh Patterh, J.S. Dhillon |
10.5120/4661-6758
|
Ranjit Kaur, Manjeet Singh Patterh, J.S. Dhillon . Design of Optimal L1 Stable IIR Digital filter using Hybrid Optimization Algorithm. International Journal of Computer Applications. 38, 2 ( January 2012), 27-32. DOI=10.5120/4661-6758
Abstract
A Hybrid optimization algorithm is applied for designing stable infinite impulse response (IIR) digital filter based on L1-approximation error criterion. The proposed Hybrid method calculates the optimal filter coefficients by exploring and exploiting the search space locally as well globally. The filter designed based on L1-approximation error possesses flat passbands and stopbands in comparison to that of least square design and the minimax approach. A comparison with other design techniques is made, demonstrating that the proposed hybrid approach can obtain better digital IIR filters than the existing Genetic Algorithm (GA) based methods.
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