Modern Rounding Based Approximate (MROBA) Multiplier for the Design of Fir Filter
Karanam Anusha1, Ponnampalli Sudhakar Rao2
1Karanam Anusha, Assistant Professor, Department of ECE, Malla Reddy Engineering College for Women Autonomous, Secunderabad (Telangana), India.
2Ponnampalli Sudhakar Rao, Assistant Professor, Department of ECE, Malla Reddy Engineering College for Women Autonomous, Secunderabad (Telangana), India.
Manuscript received on 01 November 2019 | Revised Manuscript received on 13 November 2019 | Manuscript Published on 22 November 2019 | PP: 1863-1866 | Volume-8 Issue-6S3 September 2019 | Retrieval Number: F13570986S319/19©BEIESP | DOI: 10.35940/ijeat.F1357.0986S319
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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: For better power utilization, area,speed which are important criteria in the design of DSP processors multiplier design is main issue. The work of multiplier is rounding the numbers both signed and unsigned. In few applications speed is more important than accuracy so to improve the performance approximate circuits are introduced with reduce energy consumption and increase speed. In this paper, we propose an FIR filter based on Modern Rounding Based Approximate(M ROBA).In this modified rounding based approximate multiplier the numbers are rounded to the nearest exponent irrespective of 2 n .The proposed MROBA multiplier based FIR filter was compared with Rounding Based Approximate (ROBA) Multiplier. In this multiplier the operands are rounded to the nearest exponent of two. This approximation will lead to simplification of multiplication operation thus reducing area and increasing speed. MROBA gives better results with the MROBA MAC unit is implemented.
Keywords: Approximate Multiplier, Digital Signal Processing, Finite Impulse Response (FIR), MROBA Multiplier.
Scope of the Article: Design and Diagnosis