具有位置指纹定位功能的WCDMA移动终端设计

摘要

针对 TDOA、GPS 等定位技术在室内、城市环境中对移动终端进行定位存在的各种问题和不足，设计了一种基于位置指纹定位原理的3G WCDMA位置指纹定位系统，并完成了包括系统结构、系统电路、开发环境、系统软件、通讯帧格式在内的移动终端软硬件的设计及系统实现。现场实验及测试结果表明，在城市环境中该系统能对3G移动终端取得较高的定位精度，达到了预期的设计目的。%Aiming at the mobile terminal localization problem in both indoor and urban environment with TDOA and GPS technologies, the 3G WCDMA fingerprint positioning system based on the principle of location-fingerprint positioning is designed. The hardware and software design of the mobile terminal and the system implementation are completed,including system architecture, system circuit, development environment, system software, communication frame format. Field experiments and test results indicate that the system could achieve high positioning accuracy of 3G mobile terminal in urban environment, and this design could attatin the desired goal.