基于DDS的可变数字调制制式的应用研究  

The application of alterable digital modulation base on DDS

作　　者：邵保华[1] 庞伟正[1] 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001

出　　处：《应用科技》2004年第12期22-24,共3页Applied Science and Technology

摘　　要：详细介绍AD(模拟器件)公司生产的高性能DDS AD9852的技术指标及其使用方法,并结合TI公司生产的高性能定点DSP TMS320VC5410组成扩频通信发射系统的硬件平台.这种平台具有简洁高效,借助于软件可以灵活改变扩频码、信道编码以及根据实际需要方便调整调制制式的优越性.This paper explained the technology and application of the advanced DDS-AD9852 produced by AD Corporation in details, and it was coupled with the DSP-TMS320VC5410 to form the hardware platform of a transmit system of spread spectrum communication. This platform is concise and effective. By use of software, the system can be used to change its spread spectrum code and channel code, and it has the advantage of conveniently modulating its modulation according to the actual condition.

关 键 词：扩频通信 数字信号处理器 直接数字频率合成器 

分 类 号：TN773[电子电信—电路与系统]