软件无线电跳频电台接收机射频前端设计  

Design of RF Front-end for Frequency-hopping Radio Receiver Based on Software Defined Radio

作　　者：王燕君[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》2012年第6期969-973,共5页Telecommunication Engineering

摘　　要：基于软件无线电的基本要求和发展趋势,提出了一种应用在软件无线电跳频电台中接收机射频前端电路结构,分析了接收机射频前端的总体设计方案,包括前端各部分增益的分配、动态范围的分配、噪声系数及灵敏度的计算,讨论了对器件选择的考虑。实际测试结果表明,该射频前端性能指标满足设计要求。Based on the basis requirements and developing trend of software defined radio（SDR）, a circuit struc- ture of receiver RF front - end is proposed for the receiver of SDR - based frequency - hopping（FH） radio. The system design scheme of the receiver RF front - end is analysed, including distribution and calculation of every part＇s gain and dynamic rang,and computation of noise figure and sensitivity. Consideration of selecting devices is discussed. Test result indicates the RF front- end meets the design requirements.

关 键 词：软件无线电 跳频电台 接收机射频前端 灵敏度 噪声系数 动态范围 

分 类 号：TN802[电子电信—信息与通信工程]