广东工业大学 信息工程学院,广州,510006
邱文添(1992–),男,硕士研究生,主要研究方向为卫星导航
王峰(1961–),男,教授,主要研究方向为卫星导航、最优控制和复杂系统的动态建模等. E-mail:everett.wang@gdut.edu.cn
网络首发:2018-01-09,
纸质出版:2018
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邱文添, 王峰, 王家燃, 利传迈, 汪进, 李学易. 基于Xenomai实时Linux的北斗/GPS导航接收机[J]. 广东工业大学学报, 2018, 35(1): 50-55.
Qiu Wen-tian, Everett Xiao Wang, Wang Jia-ran, et al. Beidou/GPS Navigation Receiver Based on Xenomai RTOS in Linux Operating System[J]. 2018, 35(1): 50-55.
邱文添, 王峰, 王家燃, 利传迈, 汪进, 李学易. 基于Xenomai实时Linux的北斗/GPS导航接收机[J]. 广东工业大学学报, 2018, 35(1): 50-55. DOI: 10.12052/gdutxb.170120.
Qiu Wen-tian, Everett Xiao Wang, Wang Jia-ran, et al. Beidou/GPS Navigation Receiver Based on Xenomai RTOS in Linux Operating System[J]. 2018, 35(1): 50-55. DOI: 10.12052/gdutxb.170120.
设计了一种基于Xenomai实时Linux的北斗/GPS导航接收机. 该接收机主体采用SoCFPGA进行实现
其中HPS上的基于Xenomai的Linux实时操作系统负责系统初始化、任务调度、射频前端驱动、捕获和跟踪环路的控制、位同步和帧同步处理以及定位解算等
而数据采集、卫星信号捕获和跟踪等部分由FPGA实现. 经测试
该接收机中的实时操作系统的任务响应延迟小于15 μs
实时性能够满足北斗/GPS导航接收机对实时性的要求
且接收机的CEP测试结果达到2.290 4 m
能达到定位需求. 此外该接收机能够支持输出差分定位的原始数据及扩展组合导航.
A Beidou/GPS navigation receiver based on Xenomai RTOS in Linux operating system is designed. The main part of this receiver consists of SoCFPGA. The Xenomai real-time Linux system using HPS in the main part is responsible for system initialization
task scheduling
RF front-end driver
loop capturing and tracking control
bit synchronization and frame synchronization and positioning calculation
and the FPGA is used to collect data
capture and track satellite signal. After a series of tests
the task response delay of the real-time Linux system based on Xenomai is less than 15 microseconds
which can meet the real-time requirement of Beidou/GPS navigation receiver
and the test value of CEP of this receiver reaches 2.290 4 meters
which can also meet positioning requirement. In addition
the receiver can support output differential positioning of raw data and extended integrated navigation.
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