无线定位系统中自动增益控制电路的设计与研究  

Design and research on automatic gain control circuit in wireless positioning system

作　　者：周永强 

机构地区：[1]四川工商学院,四川成都611745

出　　处：《现代电子技术》2016年第23期157-160,164,共5页Modern Electronics Technique

摘　　要：针对卫星无线定位系统,其民用需求加大,促使商业上对更为廉价、更低功耗的射频收发前端技术进行研究和探索。设计实现了一款用于无线定位系统的数字可编程增益控制系统,可用于IMT-Advanced新一代4G无线通信网络中。对模拟控制和数字可编程两种模式进行了系统上的分析,针对系统建立数学模型,进行了可行性研究。在设计该芯片的同时,对具体模块的不同实现形式进行了阐述,并提出了可优化的结构。Since the civilian requirement of satellite wireless positioning system is increased, the cheaper and lower-power consumption RF receiving front-end technology is studied and explored for business. A digital programmable gain control system used for wireless positioning system was designed and implemented, which can be applied to the emerging IMT-Advanced new generation 4G wireless communication network. The analog control mode and digital programmable mode are analyzed systemati- cally. The mathematical model of the system was established to study the feasibility. The different realization forms of the speci- fic module are described while designing the chip, and the optimizable structures are proposed.

关 键 词：RFIC CMOS PGA 数字自动增益控制 带隙基准电压源 

分 类 号：TN710-34[电子电信—电路与系统] TM417[电气工程—电器]