专用智能定位系统（AILS）研究及实现

【作者】 于伟；

【导师】 刘琚；

【作者基本信息】 山东大学 ， 电子与通信工程， 2006， 硕士

【摘要】 近年来基于GSM和CDMA技术的蜂窝移动定位系统无线定位服务在公共安全服务、紧急报警服务、导航、城市规划和设计、智能车辆管理、智能交通运输、人员定位跟踪搜救等方面发挥越来越重要的作用。 实现对GSM和CDMA移动系统的定位主要依靠到达时间、到达角度等定位测量技术。在实际应用过程中，GSM和CDMA的定位系统中参与定位的基站之间多为非视距传播，受信道特性定位参数估计误差、多径效应和多址干扰等影响，对特定移动台的定位测量存在较大误差，满足不了精确定位的要求。专用智能定位系统(AILS)是在充分利用GSM和CDMA现有定位系统的基础上，通过现场二次定位，实现对特定移动台目标的准确捕获，可有效减少测量误差，实现较准确的定位。 本文通过对GSM、CDMA定位系统的定位模块、接口协议和信令系统，以及专用智能定位系统(AILS)的工作原理、设计思想及相关应用系统进行了研究，分析了无线侦码测向系统和无线信号测向系统的系统结构及定位关键技术，提出了有关定位技术的数据融合模型及进行了仿真实现；同时针对实测过程中存在的地波干扰问题，提出了解决的理论技术模型，对模型进行了分量分析，做了进一步的阐述。更多还原

【Abstract】 In recent years, wireless location service served by mobile location systems based on GSM and CDMA technology have played more and more vital role in such area as the public security service, Emergency alarm service, the navigation, the urban planning and the design, the intelligent vehicles management, the intelligence transportation, the personnel positioning, tracking and search, and so on.The realization of location to GSM and CDMA mobile system mainly depends on such GPS technology as arrival time, angle of arrival. In the practical application process, most of the communication among the base depots participating in the localization system in GSM and CDMA are NLOS. Affected by estimation error of channel characteristic localization parameter, multi-diameter effect and multiple access disturbance, great error exists in the measurement to specific mobile station. It can not meet requirements of pinpointing request.Regarding this, this article proposed to utilize the AILS (Appropriative and Intellective Location Systems) to locate the specific mobile station. The main superiority of AILS is that it can make full use of existing GSM and CDMA, and localization technologies such as TOA, TDOA, AOA and so on. Through the second site location, the AILS can capture the specific mobile station accurately. So it can reduce the measuring error effectively, and realizes the accurate localization.By the study of Location Model, Line Protocol, Signal Systems based on the location systems of GSM and CDMA, and of Work Principle, Design Idea, correlative Application Systems based on AILS, this article analyzes Systems architecture location pivotal technologies of Wireless Detective Code and Direction Systems, and Wireless Signal Detective Direction, proposes Data Fusion of location technologies and executes emulation; Aiming at the question of groundwave interference in actual measurement, the article proposes to solve the model of theory technology and executes weight analysis to this model and carries on expounds further。更多还原