基于空中接口信息的终端侧定位APP研究与开发

发布时间：2018-06-30 01:42

本文选题：空中接口 + 网格匹配　；参考：《北京邮电大学》2016年硕士论文

【摘要】：信息社会中的信息交流为人们的生活提供了极大的便利,而生活中许多的信息需求与地理位置有关,因此定位技术成为持续的研究热点。定位技术若以应用场景的不同区分,则包括室内定位技术和室外定位技术两个分支。室外定位技术包括卫星定位系统和移动定位技术两个方面。卫星定位系统发展成熟,定位精度较高,但卫星信号对建筑物的遮挡敏感是其无法回避的缺点,因此基于移动通信系统的定位技术发展迅速。论文关注室外定位技术中的移动定位技术,提出一种基于空中接口参数中接收信号强度度量的网格化匹配定位算法。所谓空中接口是移动终端与基站之间无线传输的技术规范,用于移动台与移动通信系统固定部分之间的互通。算法应用多个基站的空中接口参数数据,应用校正模型修正接收参数,融合网格化匹配思想,可以得到精确的位置信息。论文分析算法的复杂度及实现成本,为应用提供指导。分析算法在高负载、高速、阴影衰落、网络延迟等不同场景中的性能。论文结合大量实测数据,通过对比分析得到网格匹配算法相对于传统的基于接收信号强度的定位算法在定位性能方面的提升,并通过对比分析校正模型、拟合回归等在算法中的重要作用。论文关注定位算法的研究与实现两个方面。在实现方面,将介绍以网格匹配算法为基础的定位APP在Android平台的开发。Android是专门为移动设备开发的平台,其中包含操作系统、中间件和核心应用等。Android操作系统已经成为移动端应用最为广泛的操作平台,论文将详细介绍基于网格匹配算法的定位APP在Android端的开发流程,并进行开发成果的展示。
[Abstract]:The information exchange in the information society provides great convenience for people's life, and many of the information needs in life are related to geographical location, so localization technology has become a continuous research hotspot. If the location technology is distinguished by different application scenes, it includes two branches: indoor positioning technology and outdoor positioning technology. Outdoor positioning technology includes satellite positioning system and mobile positioning technology. The development of satellite positioning system is mature and the positioning accuracy is high. However, the sensitivity of satellite signal to buildings is an unavoidable shortcoming, so the location technology based on mobile communication system is developing rapidly. This paper focuses on the mobile location technology in outdoor positioning technology and proposes a grid-based matching location algorithm based on the measurement of received signal strength in air interface parameters. The so-called air interface is the technical specification of wireless transmission between mobile terminal and base station, which is used for interworking between mobile station and fixed part of mobile communication system. The algorithm uses the air interface parameter data of multiple base stations, corrects the receiving parameters by using the correction model, and integrates the idea of mesh matching to obtain accurate position information. This paper analyzes the complexity and implementation cost of the algorithm, and provides guidance for the application. The performance of the algorithm in different scenarios, such as high load, high speed, shadow fading and network delay, is analyzed. Combined with a large number of measured data, the performance of the mesh matching algorithm is improved compared with the traditional localization algorithm based on the received signal strength, and the calibration model is analyzed by contrast analysis. The important role of fitting regression in the algorithm. This paper focuses on the research and implementation of localization algorithms. In terms of implementation, it will be introduced that the development of location-based app based on grid matching algorithm in Android platform. Android is a platform specially developed for mobile devices, which includes the operating system, Android operating system has become the most widely used operating platform on mobile side. This paper will introduce the development process of location app based on grid matching algorithm in Android and display the development results.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TP311.56;TN929.5

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