Design of a power-scalable digital least-means-square adaptive filter

CheeWe Ng, A. Chandrakasan
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引用次数: 4

Abstract

Channel equalization is a required function in many high speed communication systems. As a result of the high performance requirements and complexity, adaptive equalization filters require significant power. These filters are often implemented in hardware rather than software on a DSP. A power scalable adaptive equalizer is presented where the power scales with the required precision through the use of dynamic tap length and bit precision. Using these techniques, a power reduction from 20.4 mW in a fixed length and bit precision filter to a minimum of 6.4 mW is demonstrated.
功率可扩展数字最小均方自适应滤波器的设计
信道均衡是许多高速通信系统所必需的功能。由于高性能和复杂性的要求,自适应均衡滤波器需要大量的功率。这些滤波器通常在硬件上实现,而不是在DSP上的软件上实现。提出了一种功率可扩展的自适应均衡器,该均衡器通过使用动态分接长度和位精度来达到所需的精度。使用这些技术,可以将固定长度和位精度滤波器的功率从20.4 mW降低到至少6.4 mW。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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