ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
24.80
Session ID : BCS2000-113/BFO2000-
Conference information
The Modification of the Normalized Quantized Gradient-Based Adaptive IIR Notch Filter for Frequency Estimation : Simulation and Real-Time Implementation
Nikom TafuChawalit BenjangkaprasertRachu PunchalardPrawit ChumchuNoppin AnantrasirichaiOrnlarp SangaroonKanok Janchitrapongvej
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Abstract

The Normalized Quantized Gradient-Based adaptive algorithm(NQLMP)has many drawbacks. For example, it has high computational complexity and the statistical properties are poor, if the power p is high. In this paper the modification of the NQLMP algorithm(MNQLMP)is presented. The proposed algorithm uses the recursively first-order gradient signal energy to control the coefficient updating instead the recursively p-order gradient signal energy. This method caused the proposed algorithm has higher convergence speed and high accuracy of the filter coefficient more than the NQLMP algorithm. The results of computer simulation and Real-Time implementation are consistency which attest the MNQLMP algorithm is better than the NQLMP algorithm.

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© 2000 The Institute of Image Information and Television Engineers
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