基于AD9777的卫星扩频发信机的设计与实现  

Design and implementation of a satellite spread spectrum transmitter based on AD9777

作　　者：侯缋玲 丁晟[2] 漆庄平[2] 梁旭文[1,2] 

机构地区：[1]中科院上海微系统与信息技术研究所,上海200050 [2]上海微小卫星工程中心,上海201203

出　　处：《信息技术》2014年第11期21-24,30,共5页Information Technology

基　　金：上海市自然科学基金(12ZR1450000)

摘　　要：介绍了数字发信机的结构,分析了AD9777的主要结构特点和工作原理,基于此,设计并实现了一种基于AD9777的卫星扩频发信机,最后根据发信机的具体实现和应用,归纳了AD9777应用过程中应注意的问题和相应切实可行的解决方案。In this paper, the constructions of digital communication transmitter are introduced, and then the main characters and principles of AD9777 are given out. A solution of satellite spread spectrum transmitter based on AD9777 is proposed. Combined with the implementation and testing of the proposed satellite communication transmitter, some problems should be paid attention to when using AD9777 and the corresponding solutions proved available are mentioned.

关 键 词：数字中频 TxDAC 扩频 AD9777 

分 类 号：TN927.2[电子电信—通信与信息系统]