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A direct RF sampling multifrequency GPS receiver

机译:直接射频采样多频GPS接收机

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摘要

The future satellite positioning/navigation systems (both GPS and Galileo) will provide civil signals on multiple frequencies, similar to that currently available only for military use. The multiple distinct frequencies will provide many advantages to users of the navigation systems. This paper presents a direct RF sampling front end design well suited for multiple frequency satellite navigation receiver design. No frequency down conversion is necessary, rather the particular frequency bands of interest are intentionally aliased using a wide band ADC. The resulting samples are passed, via a doubling buffering FPGA design, to the memory space of a host PC for storage as well as eventually processing of the multiple frequency transmissions. This paper describes the design of the front-end, validates its concept with collected data, and discusses the variations on the design of a generic multiple frequency GPS front end.
机译:未来的卫星定位/导航系统(GPS和Galileo)将在多个频率上提供民用信号,类似于目前仅用于军事用途的信号。多个不同的频率将为导航系统的用户提供许多优势。本文提出了一种直接射频采样前端设计,非常适合多频卫星导航接收机设计。无需下变频,而是使用宽带ADC故意混淆了特定的特定频段。最终的样本通过加倍缓冲的FPGA设计传递到主机PC的存储空间,以进行存储以及最终处理多频传输。本文介绍了前端的设计,并使用收集的数据验证了其概念,并讨论了通用多频GPS前端设计的变化。

著录项

  • 作者

    Thor, Jonas; Akos, Dennis;

  • 作者单位
  • 年度 2002
  • 总页数
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类

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