基带成形滤波器的数字设计与实现  

Digital design and realization of the baseband shaping filter

作　　者：王顶[1] 刘智朋[1] 赵颐轩[1] 

机构地区：[1]西北工业大学电子信息学院,陕西西安710129

出　　处：《电子设计工程》2012年第13期95-97,共3页Electronic Design Engineering

摘　　要：根据基带成型滤波器的工作原理,文中设计出了一种基带成型滤波器的数字实现方案。该方案首先运用MATALB仿真工具得到信号基带成型后的仿真数据,并将仿真数据存储在FPGA中,然后通过查表操作实现了数字基带成型滤波器的功能。文中还给出了通过MODELSIM得到的信号基带成型后的仿真结果,仿真结果表明,由该方案所设计的基带成型滤波器可以很好地完成通信系统中信号的成型特性。Based on the principle of the baseband shaping filter, a digital realization mathod of the baseband shaping filter is introduced. First of all, by using MATLAB, this scheme gets the simulation data of the signal shaped and stores this data in FPGA. And then, it realizes the function of digital baseband shaping filter by using the operation of looking up the table. This paper also uses the MODESiM to give the simulation outcome of the signal shaped. And this outcome demonstrates that the baseband shaping filter designed by this scheme can perfectly achieve the shaping performance of the signal in the communication system.

关 键 词：基带成型滤波器 采样 FPGA 查表 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]