Implementation of a discrete Legendre adaptive IIR filter using DSP56001

Document Type

Conference Paper

Publication Date



Proceedings of the 37th Midwest Symposium on Circuits and Systems, 1994


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 fi-eedpoint DSP56001 processor in an adaptive line enhancer configuration.


Electrical Engineering