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arXiv 2003.06727cs.AR
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一种用于低功耗数字信号处理的新型近似乘法器

New Approximate Multiplier for Low Power Digital Signal Processing

Farzad Farshchi, Muhammad Saeed Abrishami, Sied Mehdi Fakhraie

摘要:

本文提出了一种低功耗乘法器。该乘法器利用传统的修改布斯乘法器的破阵列乘法器的近似方法。该方法在保证乘法器输出精度的前提下,使乘法器的总功耗降低了58%。提出的乘法器与其他近似乘法器的功耗和精度进行了比较。此外,有一个更好的评价建议的乘法器的效率,它已被用于设计一个30抽头的低通FIR滤波器和功耗和精度与传统的布斯乘法器的滤波器进行了比较。仿真结果表明,在输出信噪比仅下降0.4dB的情况下,功率降低了17.1%。

英文摘要:

In this paper a low power multiplier is proposed. The proposed multiplier utilizes Broken-Array Multiplier approximation method on the conventional modified Booth multiplier. This method reduces the total power consumption of multiplier up to 58% at the cost of a small decrease in output accuracy. The proposed multiplier is compared with other approximate multipliers in terms of power consumption and accuracy. Furthermore, to have a better evaluation of the proposed multiplier efficiency, it has been used in designing a 30-tap low-pass FIR filter and the power consumption and accuracy are compared with that of a filter with conventional booth multipliers. The simulation results show a 17.1% power reduction at the cost of only 0.4dB decrease in the output SNR.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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