Different Distributed Arithmetic Multiplication Schemes used in FIR Filter
P.Sritha1, R.S.Valarmathi2, P.Ramya3
1P.Sritha, Department of Electrical and Electronics Engineering, Bannari Amman Institute of Technology, Sathyamanglam (Tamil Nadu), India.
2R.S.Valarmathi, Department of Electronics and Communication Engineering, Bannari Amman Institute of Technology, Sathyamanglam (Tamil Nadu), India.
3P.Ramya, Department of Electronics and Communication Engineering, Bannari Amman Institute of Technology, Sathyamanglam (Tamil Nadu), India.
Manuscript received on 07 December 2018 | Revised Manuscript received on 18 December 2018 | Manuscript published on 30 December 2018 | PP: 33-37 | Volume-8 Issue-2C2, December 2018 | Retrieval Number: 100.1/ijeat.B10081282C218/18©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Filters are the most necessary elements of the DSP application systems. Multiply Accumulate Unit (MAC) is the major block in the FIR filter, because of its operation. The complexities of the MAC unit can be reduced by several reduction techniques such as Constant Multiplications (CM) and Distributed Arithmetic (DA) methods. Distributed Arithmetic method replaces the MAC operation by Pre-computed results stored in Look Up Tables. Many DA based techniques have implemented in FIR filter for the reduction of area. This paper provides detail about various techniques of Distributed arithmetic methods implemented in FIR filter.
Keywords: Multiply Accumulate Unit, Distributed Arithmetic, and Look Up table.
Scope of the Article: Distributed Computing