| GPS软件接收机原理样机设计与实现 |
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| 引用本文： | 刘杰,富立,王玲玲.GPS软件接收机原理样机设计与实现[J].北京航空航天大学学报,2009,35(5):567-571. |
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| 作者姓名： | 刘杰 富立 王玲玲 |
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| 作者单位： | 北京航空航天大学自动化科学与电气工程学院,北京,100191;北京航空航天大学自动化科学与电气工程学院,北京,100191;北京航空航天大学自动化科学与电气工程学院,北京,100191 |
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| 基金项目： | 航天支撑技术基金资助项目(61801070301) |
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| 摘 要： | 为了满足GPS/INS(Global Positioning System/Inertial Navigation System)超紧组合导航系统研究的需要,克服硬件接收机参数固定,适应性差的弱点,设计了一种参数可调、灵活控制的GPS软件接收机.采用GPS L1频率的中频采样信号,运用FFT(Fast Fourier Transform)频域捕获算法和锁相环与锁频环相互辅助的载波环路,实现了信号捕获、码环和载波环路跟踪、导航电文提取与解码、伪距及导航定位解算,并与NovAtel公司的FlexPax型硬件接收机进行了比较.跑车测试结果表明,该GPS软件接收机捕获迅速、跟踪准确,导航定位精度小于10m,动态抗干扰能力明显优于一般GPS硬件接收机,适合于GPS/INS超紧组合导航系统的应用.
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| 关 键 词： | GPS/INS超紧组合 GPS软件接收机 捕获 跟踪 |
| 收稿时间： | 2008-08-10 |
Design and realization of a prototype of software GPS receiver |
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| Liu Jie,Fu Li,Wang Linlin.Design and realization of a prototype of software GPS receiver[J].Journal of Beijing University of Aeronautics and Astronautics,2009,35(5):567-571. |
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| Authors: | Liu Jie Fu Li Wang Linlin |
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| Affiliation: | School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
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| Abstract: | A prototype of software global positioning system(GPS) receiver based on software defined radio techniques to design a flexible and reconfigurable receiver with a wide range of applications was discussed.Compared with hardware GPS receiver,there is a need for a unified platform that allows software receiver development and research for Ultra-Tightly coupled GPS/INS navigation system,speeds the design process and reduces the costs.A complete software GPS receiver was implemented using fast fourier transform(... |
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| Keywords: | ultra-tightly coupled GPS/INS software GPS receiver acquisition tracking |
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