基于泛在位置服务的嵌入式导航计算机系统研究与设计  

Based on Ubiquitous Location Service of the Embedded Navigation Computer System Research and Design

作　　者：申庆辉[1] 郭承军[1] 

机构地区：[1]电子科技大学电子科学技术研究院,四川成都611713

出　　处：《全球定位系统》2017年第2期6-11,共6页Gnss World of China

摘　　要：分析了全球定位系统(GPS)、捷联惯导系统(SINS)和无线定位技术(WLAN)在城市复杂环境下室内外定位时的优缺点,提出了在城市复杂环境下采用基于卡尔曼滤波松组合的SINS/GPS组合导航定位方式,在室内环境下时,单独使用WLAN无线定位技术时易受室内复杂环境的影响,比如天花板、墙壁造成的多径效应,在传播过程中易受相近频段电器的干扰等等;提出了采用基于卡尔曼滤波的SINS/WLAN的组合导航定位技术来实现,从而实现更加平滑的导航定位结果。同时兼顾全组合导航系统高精度、低功耗、小型化的要求,设计出基于TMS320C6713和FPGA架构的嵌入式导航计算机平台。通过该平台系统的搭建,能够有效解决人们对泛在位置服务的需求问题。In the urban canyons and complex indoor environment, because the GPS sig- nal is easily obscured and interference, so that often receives less than four satellites, espe- cially in highly developed cities. But with people＇s daily activities scope expanding gradually, people want to anytime and anywhere, anytime to get its own location information. So, in order to solve this problem, this topic researchs the Global Positioning System （GPS）, the Strapdown Inertial Navigation System （SINS） and the Wireless Location Technology （WLAN） in urban complex environment of indoor and outdoor location advantages and dis- advantages, the SINS/GPS integrated navigation and positioning method based on Kalman filter loose combination is proposed in urban complex environment. In the indoor environ- ment, the use of WLAN wireless location technology alone is vulnerable to the impact of complex indoor environment, suchas multi-path effect caused by ceiling, wall and in the propagation process, it＇s susceptible to interference of electrical appliances in the same band, etc. This paper proposes a SINS/WLAN based integrated navigation and positioning technology based on Kalman filter to achieve more smooth navigation and positioning re- suits. At the same time, the integrated navigation system of high precision, low power con- sumption, miniaturization requirement, design the embedded navigation computer based on TMS320C6713 and FPGA architecture platform. Through the construction of the platform system, it can effectively help solve the problem of people demand for ubiquitous service in the location.

关 键 词：GPS 嵌入式导航计算机 TMS320C6713 FPGA 泛在位置服务 

分 类 号：P228.4[天文地球—大地测量学与测量工程]