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A transform domain circular convolution algorithm for adaptive filtering

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4 Author(s)
Panda, G. ; Sambalpur University, India ; Alvarez, A.M. ; Grant, P.M. ; Cowan, C.F.N.

A new transform domain adaptive digital filter using the common LMS adaptation algorithm based on a highly efficient circular convolution algorithm is presented. The proposed filter has an easily implementable structure involving only real-valued arithmetic. It is shown to converge to the Wiener solution in the transform domain and has significant advantage in efficiency over the corresponding FFT-based adaptive digital filters.

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Acoustics, Speech and Signal Processing, IEEE Transactions on  (Volume:35 ,  Issue: 8 )