一种高速半带插值滤波器的设计方法  

Design Method for a High-Speed Half-Band Interpolation Filter

作　　者：季心洁 王志亮[1] JI Xinjie;WANG Zhiliang(School of Microelectronics,Nantong University,Nantong 226000,China)

机构地区：[1]南通大学微电子学院,江苏南通226000

出　　处：《电子与封装》2025年第4期67-71,共5页Electronics & Packaging

基　　金：国家自然科学基金(62174149)。

摘　　要：为了满足高速通信系统和数字信号处理中对数据插值的需求,提出了一种基于半带滤波器的高速插值滤波器的设计方法。该方法利用半带滤波器的系数稀疏性与对称性,采用多路并行结构显著减少了乘法运算的数量和计算复杂度。详细介绍了半带滤波器的频域特性及其在插值中的应用,探讨了滤波器的设计步骤、硬件实现以及资源优化方法。仿真结果表明,该滤波器设计方法能够在保证滤波性能的前提下,大幅提升插值速度,适合高速和实时信号处理的应用场景。In order to fulfill the requirements for data interpolation in high-speed communication systems and digital signal processing,a design methodology for high-speed interpolation filters based on half-band filters is proposed.This approach leverages the coefficient sparsity and symmetry of half-band filters and employs a multi-way parallel architecture to substantially reduce the number of multiplication operations and computational complexity.The frequency-domain characteristics of half-band filters and their applications in interpolation are described in detail.The design procedures,hardware implementation,and resource optimization techniques for the filter are examined.Simulation results demonstrate that this filter design methodology can significantly enhance interpolation speed while maintaining filtering performance,making it well-suited for high-speed and real-time signal processing applications.

关 键 词：半带滤波器 插值滤波器 信号处理 数字滤波 

分 类 号：TN713.7[电子电信—电路与系统]