调制系统中带通滤波器的设计与应用  

The bass Pass Filter Designed and Applied in Modulation System

作　　者：王少夫[1] 

机构地区：[1]大连海事大学信息工程学院,大连116026

出　　处：《微处理机》2005年第6期64-65,共2页Microprocessors

基　　金：交通部交通应用基础研究项目(编号:200332922501)

摘　　要：本文介绍了调制系统中LC带通滤波器的设计与应用,通过函数的选取,可实现带内信号线性相位传输,同时实现较高的带外幅频抑制度,有效降低窄脉冲调制接收机输出旁瓣电平和提高噪抑制,度就LC滤波器与SAW带通滤波器进行了比较。This paper introduces the LC bass pass filter designed and applied in modulation system,and realizes the signal linear phase transmission in band and restrains the magnitude frequency out of the band by choosing the function, and it reduces sufficiently the output side lobe level and improves the noise repression, and compares the LC filter to the SAW pass band filter.

关 键 词：调制 PSPICE SAW带通滤波器 群延迟 IMG特性 

分 类 号：TN7[电子电信—电路与系统]