A fast transversal filter for adaptive line enhancement

The important problem of Adaptive Line Enhancing (ALE) is addressed in this paper. Its solution involves an Adaptive Notch Filter (ANF) proposed in [1],[2] using a minimal parameter constrained infinite impulse response (IIR) model in conjunction with the Recursive Prediction Error Method (RPEM) [3]. A Fast Transversal Filter (FTF) algorithm for the adaptive RLS-type updating of the linear phase filter is presented.

[1]  T. Kailath,et al.  Fast, recursive-least-squares transversal filters for adaptive filtering , 1984 .

[2]  Arye Nehorai,et al.  A minimal parameter adaptive notch filter with constrained poles and zeros , 1985, ICASSP '85. IEEE International Conference on Acoustics, Speech, and Signal Processing.