Title :
Reference-free adaptive interference cancellation using cross-coupled scheme
Author :
Ammar, A.A. ; Saad, E.M. ; Mahgoub, Y.A.
Author_Institution :
Fac. of Eng., Al-Azhar Univ., Cairo, Egypt
Abstract :
This paper deals with the reference-free adaptive interference cancelling techniques. A new cross-coupled adaptive interference canceller (CC-AIC), with only a single input is introduced. This scheme is capable for cancelling narrow-band interference (NBI) from a broadband signal or wideband noise from a narrow-band signal with a significantly better cancellation performance than the conventional techniques. Cancellation was obtained even when the interference has a small power spectral density with respect to the desired signal and vice versa. Furthermore, this scheme can also be used efficiently as a speech enhancer
Keywords :
adaptive signal processing; interference suppression; spectral analysis; speech enhancement; broadband signal; cancellation performance; computer simulations; cross-coupled adaptive interference canceller; cross-coupled scheme; narrow-band interference cancellation; narrow-band signal; reference-free adaptive interference cancellation; small power spectral density; speech enhancer; system stability; wideband noise; Adaptive control; Adaptive filters; Adaptive signal processing; Interference cancellation; Least squares approximation; Narrowband; Programmable control; Sensor phenomena and characterization; Speech enhancement; Wideband;
Conference_Titel :
Radio Science Conference, 2000. 17th NRSC '2000. Seventeenth National
Conference_Location :
Minufiya
Print_ISBN :
977-5031-64-8
DOI :
10.1109/NRSC.2000.838921