基于现场可编程器件的全数字成形滤波器实现  

Implentation of Digital Shaping Filters with Field Programmable Gate Arrays

作　　者：喻应芝[1] 王爱华[1] 周荣花[1] 

机构地区：[1]北京理工大学信息科学技术学院电子工程系,北京100081

出　　处：《北京理工大学学报》2003年第5期609-612,共4页Transactions of Beijing Institute of Technology

摘　　要：研究全数字基带成形滤波器的实现.根据数字通信中的基带传输原理,分析基带传输中成形滤波的必要性和几种常见实现方法的优缺点.选择了其中的查表法,并通过采用基于现场可编程门阵列器件的硬件描述语言,对该方法进行了全面的仿真和分析.采用该技术实现的全数字成形滤波器可以针对不同速率及指标在系统中方便地进行修改.符合未来数字通信软件化的趋势,在软件无线电中有广阔的应用前景.Studies the implementation of digital baseband shaping filters and analyses methods commonly used in shaping filter design, listing their disadvantages and advantages. From this analysis the table lookup process in realizing the shaping filter with field programmable gate arrays is adopted and HDL (hardware description language) is used. This kind of shaping filter with FPGA enjoys high performance and great flexibility. As HDL is used in FPGA development, the parameters can readily be modified in the shaping filter by modifying the HDL soft code, so it can be used widely in softwareradios in the future.

关 键 词：现场可编程门阵列 根升余弦滤波器 查表法 成形滤波 

分 类 号：TN713[电子电信—电路与系统]