高速成形滤波器的研究与实现  

Research and implementation of shaping filter in high speed system

作　　者：李艳萍[1] 周胜源[1] 

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004

出　　处：《电子设计工程》2012年第8期103-105,共3页Electronic Design Engineering

摘　　要：在现代通信传输系统中,数字信号传输信道的带限和非线性两大特性对发送信号的频谱也提出了较高要求,基带成形滤波器发挥着越来越重要作用。本文阐述了成形滤波的基本原理,采用多相结构设计FIR成型滤波器并采用FPGA实现,运用Matlab、modelsim和Quartus II建模与仿真软件对该方案进行了开发、仿真和验证,解决了实际高速处理数据的硬件限制问题。In the modern communication system,the crowded problem of Spectrum bandwidth is getting serious,and the Sending signal spectrum is put forward to higher requirements because of the Digital signal transmission channel characteristics： bandwidth constraints and nonlinear,so shaping filter of base-band plays a more and more important role.This paper introduce the principle of shaping filter,apply the poly-phase structure scheme of Looking-up table to shaping filter of base-band,Develop,simulate and verificate the scheme in Quartus II,Matlab and modelsim softwares,and overcome the hardware restrictions in the high speed data processing.

关 键 词：成形滤波器 SRRC 查表法 多相结构 FPGA 

分 类 号：TN713.7[电子电信—电路与系统]