电子设计工程
電子設計工程
전자설계공정
ELECTRONIC DESIGN ENGINEERING
2012年
8期
103-105
,共3页
成形滤波器%SRRC%查表法%多相结构%FPGA
成形濾波器%SRRC%查錶法%多相結構%FPGA
성형려파기%SRRC%사표법%다상결구%FPGA
shaping filter%square root raised cosine%looking-up table%poly-phase structure%FPGA
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。
在現代通信傳輸繫統中,數字信號傳輸信道的帶限和非線性兩大特性對髮送信號的頻譜也提齣瞭較高要求,基帶成形濾波器髮揮著越來越重要作用。本文闡述瞭成形濾波的基本原理,採用多相結構設計FIR成型濾波器併採用FPGA實現,運用Matlab、modelsim和Quartus II建模與倣真軟件對該方案進行瞭開髮、倣真和驗證,解決瞭實際高速處理數據的硬件限製問題。
재현대통신전수계통중,수자신호전수신도적대한화비선성량대특성대발송신호적빈보야제출료교고요구,기대성형려파기발휘착월래월중요작용。본문천술료성형려파적기본원리,채용다상결구설계FIR성형려파기병채용FPGA실현,운용Matlab、modelsim화Quartus II건모여방진연건대해방안진행료개발、방진화험증,해결료실제고속처리수거적경건한제문제。
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.
