Highly parallel adaptive filter

A parallel algorithm for digital adaptive filters is introduced. The algorithm is a look-ahead realization of a transversal filter, which uses a forgetting factor to diminish the effect of the past errors in the performance index. The authors illustrate how such an algorithm can be implemented in a regular and modular structure suitable for VLSI implementation. The maximum sampling rate is limited by the time it takes to add two binary inputs. If the input signal has a sampling rate lower than the maximum sampling rate, then the architecture can be tailored to minimize the hardware costs