基于chirp信号的室内导航定位系统设计与实现  

Indoor Navigation and Positioning System Design and Implementation based On Chirp Signal

作　　者：任修坤[1] 李珂[1] 郑娜娥 朱世磊[1] 

机构地区：[1]解放军信息工程大学,河南郑州450001

出　　处：《通信技术》2016年第6期788-793,共6页Communications Technology

摘　　要：室内定位系统成熟的产品少、需求高,因此开发实用的室内导航定位系统具有重要意义。基于无线chirp扩频信号具有的较高时间分辨率,利用双边TOA(到达时间)测距技术和泰勒级数定位解算算法,设计并开发了一种可用于室内导航定位的实验验证系统。设计系统的组成架构、工作原理、硬件设计、软件方案和工作流程,最后在实际室内环境中测得系统的定位精度优于1 m,具有极高的实用性。The demand of Indoor positioning systems increasingly high, but related products that relatively mature is quite rare nowadays, developing a practical＇indoor navigation and positioning system is of great importance. Based on the wireless chirp spread spectrum signal with a high time resolution, an experimental verification system has been designed and developed in this paper which can be used for indoor navigation and positioning by utilizing the bilateral TOA （Time of Arrival） ranging technology and Taylor series positioning algorithm. This paper has provided the architecture, working principle, hardware design and software solution, as well as the work flow of the system, then a test result of the system conducted in the practical indoor environment has been given in the end with a positioning accuracy better than 1 meter.This result shows that it has very high practicability.

关 键 词：室内定位 CHIRP信号 双边TOA测距 设计与实现 

分 类 号：TN95[电子电信—信号与信息处理] TN911.7[电子电信—信息与通信工程]