一种升余弦成形滤波器的设计  

A Sort of Raise Cosine Filter Design

作　　者：刘睿强[1] 景新幸[1] 

机构地区：[1]桂林电子工业学院,广西桂林541004

出　　处：《现代电子技术》2006年第13期51-52,55,共3页Modern Electronics Technique

摘　　要：给出一种适用于PHS基带系统中高性能成形滤波器,对比两种实现方法在基带芯片中的性能,利用最少的非零比特位来表示符号数的编码技术即符号数Canonic Sign Digit表示(CSD),采用子结构共享技术改进数字滤波器结构,实现了二进制补码与CSD的转换和系统中升余弦Nyquist成形滤波器的ASIC设计,在SMIC 0.18μm工艺下进行了功能仿真、综合和后仿真。The implementation of a high performance pulse shape digital filter used in PHS baseband system is proposed. Two types of coefficients transforms are compared, The minimal number of non - zero digitals called Canonic Sign Digital （CSD） and common sub - structure sharing mode are used to improve performance of raise cosine shape filter. The function simulation, synthesis and post -synthesis simulation are achieved and the ASIC design is under the process of SMIC 0. 18 μm.

关 键 词：升余弦滤波器 CSD 子结构共享 PHS 

分 类 号：TN713.7[电子电信—电路与系统]