基带成形滤波器设计与实现  

Design and Realization of Baseband Shaping Filter

作　　者：季伟[1] 周学军[1] 林海涛[1] 窦高奇[1] 

机构地区：[1]海军工程大学通信工程系,武汉430033

出　　处：《舰船电子工程》2012年第2期131-133,共3页Ship Electronic Engineering

摘　　要：数字通信系统中广泛采用平方根升余弦滚降数字滤波器作为基带成形滤波器。首先介绍基带成型滤波器基本原理,然后分析了平方根升余弦滤波器的主要参数对其性能的影响,最后从频域角度给出了平方根升余弦滤波器的一种设计方法和步骤,并给出了仿真结果。Square-root raised cosine roll off digital filter was widely applied to shaping filter and in digital communication system. This paper first discuss the basic principle of shaping filter design, then analyze the performance effect of the main parameters on shaping filter. At last, a designing method and steps from frequency domain is given for square-root raised cosine roll-off digital filter.

关 键 词：成形滤波器 平方根升余弦 频域实现 

分 类 号：TN911.5[电子电信—通信与信息系统]