摘要
宽带高速电台接收机的接收链路设计,需要满足高带宽、宽动态范围和优良的线性度。简述了宽带高速通信接收机的链路设计的核心技术,主要阐述了接收机链路中的射频前端、电调滤波器、中频处理等设计要点,并对自动增益控制(AGC,Automatic Gain Control)的控制策略、增益分配、控制算法、自动电平跟踪等进行了进一步的说明。最后结合实际应用,介绍该接收机链路设计的应用及其使用效果。
It isrequired that the design on receiving chain of broadband high radio receiver should satisfy the conditions of high bandwidth, wide dynamic range, and good linearity. This article briefly tells of the core technology in the design of receiving chain of high-speed communication receiver, and principally discusses the design of RF front circuit, electrically tunable filter, IF circuit. In addition, it further describes the control policy, gain distribution, and control algorithms of AGC （Automatic Gain Control）. Finally, in combination with practice, the article gives an introduction on the applications and effects of this receiving chain design.
出处
《通信技术》
2012年第12期48-50,53,共4页
Communications Technology
