基于MAX2769B的BDS接收机设计与实现  

Design and implementation of BDS receiver based on MAX2769B

作　　者：唐振辉[1] 蔡成林[1] 张首刚 韦照川[1] TANG Zhen-hui;CAI Cheng-lin;ZHANG Shou-gang;WEI Zhao-chuan(Guangxi Key Laboratory of Precision Navigation Technology and Application,Guilin University of Electronic Technology,Guilin 541004,China;National Time Service Center,Chinese Academy of Sciences,Xi′an 710600,China)

机构地区：[1]桂林电子科技大学广西精密导航技术与应用重点实验室,广西桂林541004 [2]中国国家授时中心,西安710600

出　　处：《桂林理工大学学报》2018年第3期570-573,共4页Journal of Guilin University of Technology

基　　金：国家自然科学基金项目(61263028)

摘　　要：为了实现BDS卫星信号B1频点的接收,采用MAX2769B设计了一种射频信号接收系统方案。该方案具有功耗低、集成度高、稳定性好等特点,根据MAX2769B的工作原理和结构特点,利用MAX2769B实现了一种BDS接收机射频前端方案。详细描述了射频前端每个模块的功能,介绍了电路板制作的重要原则和北斗B1频点信号接收方法。在制作完成射频接收前端后,对射频模块输出的中频信号进行测试,射频模块输出的中频信号满足理论分析,输出信号功率增益112 dB,且能用在基带信号处理程序上实现信号捕获。A radio frequency signal receiving system is designed based on MAX2769B.In order to achieve the BDS B1 frequency points of the satellite signal reception,we analysed the working principle and structure of the MAX2769B,and achieved a BDS receiver RF front-end program using MAX2769B.We confirmed that this system has lots of advantagements including low power consumption,high integration and stability.In this paper,the RF front-end function of each module is introduced in detail,by the important principle of PCB production and BDS B1 frequency signal receiving method.After making RF receive front-end completely the RF module output of intermediate frequency signal was tested.The results show that the IF signal output by the RF module can not only meet the theoretical analysis,by making the signal power at 112 dB,and but also can realize signal capture on baseband signal processing program.

关 键 词：BDS 接收机 射频前端 MAX2769B 

分 类 号：TN914.4[电子电信—通信与信息系统]