摘要
介绍了一种适用于数字通信系统的中频调制方案。该方案基于正交调制、DDS、数字内插技术和ARM微处理器技术,使用数字上变频器AD9856和ARM926EJ-S微处理器S3C24A0A设计通用硬件平台,可以生成多种中频调制信号,可用于移动通信和数字化电台等通信系统项目的研发和验证。
Based on quadrature modulation, DDS, digital interpolation and ARM microprocessor, an IF modulation scheme is introduced ,which is implemented on a general hardware platform using the quadrature digital upconverter AD9856 and ARM926EJ -S microprocessor S3C24AOA. It can generate a variety of IF modulation signals and can be used in the research and development of many communication systems such as mobile communication and digitized radio.
出处
《电讯技术》
2006年第6期188-190,共3页
Telecommunication Engineering
关键词
数字通信系统
数字正交上变频器
调制器
中频调制
digital communication system
quadrature digital upconverter
modulator
IF modulation
