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高灵敏度GPS接收机载波跟踪环路的设计优化与实现
引用本文:武玲娟,崔莹莹,路卫军,于敦山.高灵敏度GPS接收机载波跟踪环路的设计优化与实现[J].北京大学学报(自然科学版),2011(5):783-788.
作者姓名:武玲娟  崔莹莹  路卫军  于敦山
作者单位:北京大学信息科学技术学院微电子学系;
摘    要:基于高灵敏度GPS基带信号处理器,设计优化并实现了GPS载波跟踪环路。为了提高跟踪灵敏度,对鉴相器的性能、环路误差、环路参数进行了分析优化,并采用锁频环辅助锁相环结构,同时对于需要多个乘法器、除法器的模块采用分时共享技术,降低了资源消耗减小芯片面积。用Verilog硬件描述语言实现了所设计的载波跟踪环路,在ModelS...

关 键 词:全球定位系统(GPS)  高灵敏度  载波跟踪  锁相环(PLL)  锁频环(FLL)

Design Optimization and Implementation of Carrier Tracking Loop for High Sensitivity GPS Receivers
WU Lingjuan,CUI Yingying,LU Weijun,YU Dunshan.Design Optimization and Implementation of Carrier Tracking Loop for High Sensitivity GPS Receivers[J].Acta Scientiarum Naturalium Universitatis Pekinensis,2011(5):783-788.
Authors:WU Lingjuan  CUI Yingying  LU Weijun  YU Dunshan
Institution:WU Lingjuan,CUI Yingying,LU Weijun,YU Dunshan Department of Microelectronics,School of Electronics Engineering and Computer Science,Peking University,Beijing 100871
Abstract:This paper presents the design,optimization and implementation of GPS carrier tracking loop based on high sensitivity GPS base band signal processor research topic.The phase detector,loop error sources and loop parameters are first optimized to improve the tracking sensitivity and then the phase lock loop assisted by frequency lock loop circuit structure is applied.The circuit is optimized and timing-sharing technology is used for the modules including several multipliers and dividers to reduce resource con...
Keywords:GPS  high sensitivity  carrier tracking  PLL  FLL  
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