综合基带全数字测试信号源  

Research on All Digital Test Signal Source of Comprehensive Baseband

作　　者：谢剑锋[1] 谢文楷[2] 汪远玲[3] 

机构地区：[1]南昌工程学院机电系,南昌330029 [2]电子科技大学物理电子学院,成都610054 [3]西南电子技术研究所,成都610036

出　　处：《电子科技大学学报》2004年第5期539-542,共4页Journal of University of Electronic Science and Technology of China

摘　　要：研制了70 MHz综合基带设备全数字测试信号源,能够输出遥测、数传和时频信号,并且具有通过PCI总线获取数据和接受计算机监控的能力。以数传QPSK信号为例,讨论了测试信号源的实现方法,并给出了仿真与测试结果。研究表明,已达到各项技术指标。The terminal auto-check signal source of telemeter system is an important part to improve the reliability and maintenance of the whole system. The signal source can output the telemeter signal、data transmission signal, and time-frequency signal, certainly the signal has the ability to get data through the PCI data bus and has the ability to accept the monitor of the main-control computer. The way how to realize the QPSK signal is discussed and give the result of simulation and real test.

关 键 词：测试信号源 差分四相移相键控 直接数字频率合成 中频数字化 

分 类 号：TN453[电子电信—微电子学与固体电子学]