基于AD9287多通道数字接收机前端设计  

Design of Front-end of Multi-Channel Digital Receiver Based on AD9287

作　　者：徐波[1] 王跃科[1] 陈建云[1] 

机构地区：[1]国防科学技术大学机电工程与自动化学院,湖南长沙410073

出　　处：《计算机测量与控制》2009年第8期1658-1660,共3页Computer Measurement &Control

摘　　要：针对多通道数字接收机在移动通信、雷达侦测等领域的应用需求,讨论了4通道高速模数转换器AD9287的相关特性和内部架构特征;在此基础上研究了基带、中频宽带、中频窄带条件下高性能前端驱动电路的设计原理、方法,给出了具体电路图;以两片AD9287为核心,设计并实现了8通道通用软件无线电处理平台;基于此平台的测试结果表明文中给出的设计方法性能优良,能够满足实际应用要求。Aiming at the needs of Multi--Channel digital receiver in the fields of mobile teleeom, radar measurement and so on, this paper discusses the relative features and inner structures of 4 channel high speed analog--to--digital converter AD9287. Based on this, the designing principles and methods of high--performance front drive circuit under the conditions of base band, intermediate frequency broad band and intermediate frequency narrow band have been researched, precise circuit diagram has been given as well. With two pieces of AD9287 being the core, the 8 channel general software radio processing platform has been designed and put into operation. The test result based on this platform shows that performance of the method is good, and can satisfy physically applied request.

关 键 词：AD9287 软件无线电 数字接收机 开关电容ADC 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]