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本文叙述用分布计算与查表相结合的方法,提高微处理器FIR数字滤波器的采样速度。文中提出了高阶型和对称型FIR数字滤波器的系数分段法和对称系数分离技术,用以降低对存贮器容量的要求。
This article describes the use of distribution calculation and look-up table to improve the sampling rate of the microprocessor FIR digital filter. In this paper, the high-order and symmetric FIR digital filter coefficient segmentation method and the symmetry coefficient separation technology to reduce the memory capacity requirements.