摘要
提出了一种适应于宽带扩频通信系统的数字中频调制的实现方案,它基于正交调制、DDS、数字上变频和数字内插等技术,采用通用硬件平台,可以生成多种中频调制信号,可广泛用于数字化扩频通信电台、宽带CDMA、软件无线电、遥控遥测等通信系统中。
A digital IF modulator for wideband spread spectrum communication system is proposed, which can generate a variety of IF modulation signals based on technologies of quadrature modulation,DDS,digital upconversion and digital interpolation,etc.It is implemented on a general hardware platform and can be extensively used in many communication systems such as digitized spread spectrum radio, wideband CDMA, software radio and telemetry and telecommand system.
出处
《电讯技术》
北大核心
2003年第5期47-51,共5页
Telecommunication Engineering
关键词
宽带扩频通信
数字中频
正交扩频调制器
数字内插
DDS
数字上变频
信号调制
Spread spectrum communication system
Software radio
Digital IF
Quadrature spread spectrum modulator
DDS
Digital interpolation
