INTERNATIONAL JOURNA L OF ENGINEERING SCI ENCES & RESEARCH TECHNOLOGY High Speed and Area Efficient Parallel Fir Digital Filter Structures for Application Based o n Fast Fir Algorithm
P. Thamarai, Kiran Kumar · 2013
impulse response (FIR) digital filters are one of t he most widely used fundamental devices performed in DSP systems, ranging from wireless communications to video and image processing. This pap er proposes new parallel FIR filter structures, which are benef icial to symmetric coefficients in terms of the har dware cost, under the condition that the number of taps i s a multiple of 2 or 3. The 5 parallel FIR structur es gives low area and high speed compare to existing 4 parallel archi tecture , exploit the inhere nt nature of symmetric coefficients reducing half the number of multipliers in sub filt er section at the expense of additional adders in p reprocessing and post processing blocks. Exchanging multipliers with adders is advantageous because adders weigh less multipliers in terms of silicon area. Due to reduct ion of multipliers, will get low area and high spee d fir filter.