IMPLEMENTATION OF HIGH SPEED AND LOW AREA RECONFIGURABLE FIR FILTER USING MULTIPLE CONSTANT MULTIPLIER
G. Sowmya, I.Sugitha, Dr.k.k Senthilkumar · International journal of advance research and innovative ideas in education · 2018
The direct Form FIR filter is used for DSP applications where the filter order is fixed. Generally this filter consumes more area and power. To overcome this problem reconfigurable architecture of transpose form FIR filter which is similar to direct form FIR filter where only delay and multiplier unit switched positions is incorporated. The RFIR structure consist of Coefficient selection unit (CSU), register unit(RU),Inner product unit (IPU) and pipeline adder unit(PAU). The PAU is used to add output from the IPU unit .The CSU is used to store coefficient of all the filter to be used for the reconfigurable application. Here RFIR is designed using a IPU which consumes more area and delay. The modified RFIR is designed further to reduce the area and delay. The modified RFIR filter the IPU is replaced by the multiple constant multiplier (MCM). The MCM consumes less area, delay than compared methods.