3R■测量系统的高精度新型应答机设计  

Design of a Novel and High Precision Transponder Based on 3R■ Instrumentation System

作　　者：漆家国[1] 

机构地区：[1]中国西南电子技术研究所,成都610036

出　　处：《电讯技术》2006年第5期127-130,共4页Telecommunication Engineering

摘　　要：介绍了一种基于3R■测量系统的三通道高精度新型应答机,该应答机采用一路相参、两路非相参的方案。比较了中频调制转发(中转调)和中频混频转发(中转发)两种方案的特点,并对特殊环路设计、多路信道带宽设计和强弱信号增益线性设计等关键技术进行了详细论述。This paper describes a novel and high precision three -channel transponder based on 3RR instrumentation system. The scheme of one channel coherent and two channels noncoherent is adopted by the transponder. The characteristics of IF modulation transponded scheme and IF mixed transponded scheme are compared, and some critical technology problemes such as special phase- locked loop, channel band- width, linear gain of great signal and small signal together are discussed in detail.

关 键 词：测量系统 应答机 高精度 锁相环 

分 类 号：TN802[电子电信—信息与通信工程]