一种设计窄带低通FIR滤波器的新结构

Proceedings of IEEE Region 10 International Conference on Electrical and Electronic Technology. TENCON 2001 (Cat. No.01CH37239) Pub Date : 2001-08-19 DOI:10.1109/TENCON.2001.949595

Y. Lian, C. Yang

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引用次数: 7

摘要

提出了一种设计窄带锐利低通FIR滤波器的新结构。当与插值有限脉冲响应(IFIR)技术相结合时，所提出的结构能够显著节省乘法器和加法器的数量。节省是通过用预滤波器均衡器取代IFIR滤波器中的插值器来实现的。所提出的预滤波器的实现是无乘法的，从而降低了复杂度和成本。我们通过一个例子表明，与IFIR方法相比，所提议的结构在乘数和加法器数量上分别节省了44%和36%。

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A new structure for design narrow band lowpass FIR filters

A new structure is proposed for design narrow band sharp lowpass FIR filters. The proposed structure is able to achieve significant savings in the number of multipliers and adders when combined with the interpolated finite impulse response (IFIR) technique. The savings are achieved by replacing the interpolator in an IFIR filter with a prefilter-equalizer. The implementation of the proposed prefilter is multiplication free which leads to low complexity and low cost. We have shown by an example that the proposed structure yields additional savings of 44% and 36% in the number of multipliers and adders, respectively, compared to the IFIR approach.

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Proceedings of IEEE Region 10 International Conference on Electrical and Electronic Technology. TENCON 2001 (Cat. No.01CH37239)

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