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GNSS Baseband Logging System

机译:GNSS基带记录系统

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摘要

The software design, implementation, and preliminary test of a GNSS Baseband Logging System, which records baseband GNSS L1 signals in real-time, is presented herein. The RF Front-End of this GNSS Baseband Logger, centered at the GPS L1 frequency, has enough bandwidth to include (or receive) GPS, GLONASS, Galileo, and Compass L1 signals without truncation which is essential for baseband processing. Existing software defined radio open source GNSS projects have been proposed, developed, and implemented into a PC Data Processing Terminal of the system with several off-line functions such as FFT-based acquisition, GPS (or GNSS) positioning, and Carrier/Noise ratio analysis. A brief description of the design and performance of the GNSS logging system is supported by the observed experimental data.
机译:本文介绍了GNSS基带测井系统的软件设计,实现和初步测试,该系统实时记录基带GNSS L1信号。该GNSS基带记录器的RF前端以GPS L1频率为中心,具有足够的带宽以包含(或接收)GPS,GLONASS,伽利略和Compass L1信号而不会被截断,这对于基带处理至关重要。现有的软件定义的无线电开源GNSS项目已被提议,开发并实施到系统的PC数据处理终端中,该终端具有多种离线功能,例如基于FFT的采集,GPS(或GNSS)定位以及载波/噪声比分析。观测到的实验数据支持对GNSS测井系统的设计和性能的简要描述。

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    Beijing University of Aeronautics & Astronautics, 1205 Tower 5, 48 Huayuanbei Road, China 100191;

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