Title :
Implementation of a discrete Legendre adaptive IIR filter using the DSP56001
Author :
Ji, Zhonghe ; Kozick, Richard J. ; Aburdene, Maurice F.
Author_Institution :
Dept. of Electr. Eng., Bucknell Univ., Lewisburg, PA, USA
Abstract :
This paper presents the results of an implementation of a discrete Legendre adaptive IIR filter using the Motorola DSP56001 processor. The impulse response of the adaptive filter is a linear combination of orthogonal sequences. The filter is attractive because a long-duration impulse response can be realized with fewer taps than an FIR filter, with the additional advantage that the simple and well-known LMS algorithm, can be used to update the weights. The paper discusses some practical issues related to the implementation of the filter on the fixed-point DSP56001 processor in an adaptive line enhancer configuration
Keywords :
IIR filters; Legendre polynomials; adaptive filters; digital arithmetic; digital filters; digital signal processing chips; discrete time filters; least mean squares methods; LMS algorithm; Motorola DSP56001 processor; adaptive line enhancer configuration; discrete Legendre adaptive IIR filter; fixed-point processor; long-duration impulse response; orthogonal sequences; Adaptive filters; Computational modeling; Computer simulation; Digital signal processing chips; Finite impulse response filter; IIR filters; Least squares approximation; Line enhancers; Quantization; Very large scale integration;
Conference_Titel :
Circuits and Systems, 1994., Proceedings of the 37th Midwest Symposium on
Conference_Location :
Lafayette, LA
Print_ISBN :
0-7803-2428-5
DOI :
10.1109/MWSCAS.1994.518997
