A Rom Architecture Based Look-Up-Table Design And Memory-Based Implementation Of Fir Digital Filter
Finite-Impulse response (FIR) digital filter is widely used as a basic tool in various signal processing and image
processing applications. New approaches to LUT-based-multiplication are suggested to reduce the LUT-size over that of
conventional design. Distributed arithmetic (DA)-based computation is popular for its potential for efficient memory-based
implementation of finite impulse response (FIR) filter where the filter outputs are computed as inner-product of input-sample
vectors and filter-coefficient vector. In a ROM architecture based LUT design we are using a ROM of 9 words. We have
synthesized the proposed LUT-multiplier and ROM based LUT-multiplier for 4-bit input word.