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Plain gradient based direct frequency estimation using second-order constrained adaptive IIR notch filter

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2 Author(s)
J. Zhou ; Sch. of EEE, Nanyang Technol. Univ., Singapore ; G. Li

An investigation of the problem of direct frequency estimation with a constrained second-order adaptive IIR notch filter using the plain gradient algorithm is reported. The closed form expressions for the bias and mean square error of the proposed algorithm are derived. Simulations show that the proposed algorithm yields a faster convergence speed than the conventional indirect frequency estimation algorithms.

Published in:

Electronics Letters  (Volume:40 ,  Issue: 5 )