Title :
A gradient algorithm for phase-only adaptive FIR filtering
Author :
Norris, J.D. ; Douglas, S.C.
Author_Institution :
Dept. of Electr. Eng., Southern Methodist Univ., Dallas, TX, USA
Abstract :
In this paper, we describe a simple gradient algorithm for adapting the phase response of an FIR filter whose magnitude response is already specified. The algorithm is an extension of a previously-developed gradient adaptive algorithm for allpass filtering. The algorithm directly adjusts the impulse response of the FIR filter using input and desired response signals in a simple manner without the need for frequency-domain processing or coefficient monitoring. A stationary point analysis of the algorithm verifies its desirable estimation capabilities. Simulations confirm the capability of the algorithm in a filter modeling task.
Keywords :
FIR filters; adaptive filters; gradient methods; transient response; estimation; filter modeling; gradient algorithm; impulse response; phase response; phase-only adaptive FIR filtering; stationary point analysis; Adaptive algorithm; Adaptive control; Adaptive filters; Algorithm design and analysis; Filtering algorithms; Finite impulse response filter; Frequency domain analysis; IIR filters; Programmable control; Signal processing algorithms;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on
Print_ISBN :
0-7803-7663-3
DOI :
10.1109/ICASSP.2003.1201658