基于LEON3开源软核的卫星导航接收机设计

发布时间：2018-06-26 23:43

  本文选题：卫星导航接收机 + LEON　； 参考：《电讯技术》2016年06期

【摘要】：为了提高卫星导航接收机的工作性能以及小型化设计,在现场可编程门阵列(FPGA)平台上开发一款基于LEON3开源软核的拥有自主知识产权的卫星导航接收机。通过LEON3开源软核架构和自主设计的分段匹配滤波器(PMF)与快速傅里叶变换(FFT)相结合的捕获模块、基于延迟锁定环的码跟踪环路和基于科斯塔斯环的载波跟踪环路相结合的跟踪模块IP核实现卫星导航接收机的基带系统级芯片(So C)设计,最后完成接收机系统的软件设计并在DE2-115 FPGA平台上对接收机系统进行验证测试。实验结果表明所设计的接收机性能优良,能够正常捕获并且跟踪到卫星信号,定位结果显示正常,误差在3 m左右。拥有完全的硬件软件源代码以及优良的性能使得所设计的接收机对国内导航的发展有着重要意义。
[Abstract]:In order to improve the performance and miniaturization design of the satellite navigation receiver, a satellite navigation receiver with independent intellectual property rights based on LEON3 open source soft core is developed on the field programmable gate array (FPGA) platform. Through LEON3 open source soft core architecture and self-designed piecewise matched filter (PMF) combined with fast Fourier transform (FFT) acquisition module, The design of base-band system-level chip (SoC) of satellite navigation receiver is realized by IP core of code tracking loop based on delay locking loop and carrier tracking loop based on Kostas loop. Finally, the software design of the receiver system is completed and the receiver system is verified and tested on the platform of DE2-115 FPGA. The experimental results show that the designed receiver has good performance and can capture and track the satellite signal normally. The positioning results show normal and the error is about 3 m. With complete hardware and software source code and excellent performance, the designed receiver is of great significance for the development of domestic navigation.
【作者单位】： 广东工业大学信息工程学院;珠海全志科技有限公司;
【基金】：广东省科技计划项目(2013B010401026)~~
【分类号】：TN965.5
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本文编号：2071853