大地测量与地球动力学2013，Vol.33Issue(1)：117-122,6.
传感器位置对狭长空间定位精度的影响
ANALYSIS OF EFFECTS ON LOCATION ACCURACY OF SENSORS IN NARROW SPACE
摘要
Abstract
According to the coverage characteristics of sensors network in indoor and underground location technology, a scheme of three-dimensional (3D) complete coverage was proposed for the location in the narrow space in a tunnel. Besides,the Time Difference of Arrival (TDOA) location technology was employed, meanwhile, the Dilution of Precision (DOP) was selected as the accuracy evaluation index. Thereafter, the changing law of DOP values and positioning accuracy was analyzed while sensors' spacing increased or decreased. The research shows that positioning accuracy primarily depends on sensor' s radius, width of narrow space, and sensors' spacing, etc. A simulated in-situ test of linear tunnel was carried out, and the result shows that optimization scheme of sensors' location based on the changing law of DOP can thus dramatically improve the positioning accuracy and reliability.关键词
狭长空间/三维完全覆盖/TDOA/精度因子/传感器间距Key words
narrow space/3D complete coverage/TDOA/DOP (Dilution of Precision)/sensors' spacing分类
天文与地球科学引用本文复制引用
侯全武,王坚,胡洪,张虹..传感器位置对狭长空间定位精度的影响[J].大地测量与地球动力学,2013,33(1):117-122,6.基金项目
国家自然科学基金青年基金(40904004) （40904004）
江苏省"青蓝工程"项目 （）
江苏省高校优势学科建设工程项目 （）
江苏省研究生培养创新工程(CXZZ11-0299) （CXZZ11-0299）
