Energy efficient reconfigurable fir filter architecture
Mahvish Quraishi, V. D. Alagdeve · 2017
In finite impulse response (FIR) filters reconfigurability and low complexity are the two key requirements. In this paper FIR filter in transpose form with inherent pipelining are used to save computation time. A flow graph for transpose form block FIR filter with reduced complexity is derived on detail analysis of computation of transpose form block FIR filter. A generalised architecture which is multiplier based is derived for proposed transpose form block FIR filter for reconfigurable applications. A less complex design using multiple constant multiplications (MCM) method for block implementation of fixed FIR filter is also introduced.