摘要
利用有限冲激响应滤波器进行磨音信号处理时,滤波器的阶数过高,会使滤波器的实时性变差,并且引起硬件成本的增高。针对这一问题,采用内插值法对滤波器进行降阶。阐述内插值法的原理并给出FIR滤波器的设计方法。仿真结果表明,应用内插值法并选择合适的罩子滤波器能有效降低FIR滤波器的阶数,进而提高磨音信号处理的实时性及降低硬件成本。
The problems of worse real-time and higher hardware cost of a filter will be leaded by too high order of filter when the finite impulse response filter is used to mill sound.In order to solve this problem,the interpolation method is used to reduce the filter order.This paper introduces the principle of interpolation method and gives a design method of FIR filter.Simulation results demonstrate that using interpolation method and choosing a befitting Hood filter can effectively reduce the order of FIR filter and solve the above problems.
出处
《济南大学学报（自然科学版）》
CAS
北大核心
2013年第3期275-278,共4页
Journal of University of Jinan(Science and Technology)
基金
国家自然科学基金(61102113)
