Power Consumption in Novel Digital Filters
Ian G. Wells, Stuart Thomas · 2013
T his paper describes an investigation into the power consumption of a Finite Impulse Response (FIR) filter, designed using primitive operator arithmetic (POF). The filter was compared with a standard FIR filter created using conventionally structured multiplier blocks. The filters were created using Matlab and VHDL coding techniques. In order to maintain control of the structural implementations, both filters were created using only structural modelling methods. Power consumption estimations were made using Xilinx’s XPower software which indicated a possible 34% saving in dynamic power consumption, and a possible 2.5% saving in total power consumption in favour of the POF filter structure.