Switching activity analysis and power estimation for multiple constant multiplier block of FIR filters
Switching activity analysis and power estimation for multiple constant multiplier block of FIR filters
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DOI：
10.1109/iscas.2011.5937522
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发表时间：
2011-05
期刊：
影响因子：
--
通讯作者：
W. Ye;Y. Yu
中科院分区：
文献类型：
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作者：
W. Ye;Y. Yu
FIR滤波器的多常数乘法器（MCM）模块中的开关在很大程度上受到每个计算单元-加法器输入的空间相关性的影响。在这项工作中，一个新的开关活动模型的MCM块的开发考虑到每个加法器的输入空间相关性。在此基础上，提出了一种功耗测量方法来估计FIR滤波器MCM模块的功耗。对几个基准滤波器的动态功耗仿真结果表明，该模型的精度优于现有的Glitch Path Count、Glitch Path Score和Power Index等模型。
The switchings in the multiple constant multiplier (MCM) block of FIR filters are heavily affected by the spatial correlation of inputs at each computation unit—adders in this case. In this work, a new switching activity model for the MCM blocks is developed by taking the spatial correlation of inputs of each adder into consideration. Based on this model, a power measurement is proposed to estimate the power consumption of the MCM blocks of FIR filters. The dynamic power simulation of several benchmark filters shows that the accuracy of our model outperforms that of existing models such as Glitch Path Count, Glitch Path Score and Power Index.