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| 引用本文： | 侯全武,王坚,胡洪,张虹.??????λ??????????λ????????[J].大地测量与地球动力学,2013,33(1):117-122. |
| 作者姓名： | 侯全武 王坚 胡洪 张虹 |
| 作者单位： | 1. 中国矿业大学国土环境与灾害监测国家测绘局重点实验室,徐州221116;中国矿业大学环境与测绘学院,徐州221116 2. 中国矿业大学环境与测绘学院,徐州,221116 3. 石家庄机械化步兵学院图书馆,石家庄,050000 |
| 基金项目： | 国家自然科学基金青年基金(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) |
| 摘 要： | ????????????????λ?д????????????????????????????????????????????????????????????????????(TDOA)??λ????????????????(DOP)???????????????????????????????????С???DOP????λ?????仯???ɡ??о?????????λ????????????????????????????????????????????????????????????′??????????????????????????λ??仯????DOP??仯????????????????????????????????????????????λ?????????? |
| 关 键 词： | ??????? ?????????? TDOA ???????? ????????? |
ANALYSIS OF EFFECTS ON LOCATION ACCURACY OF SENSORS IN NARROW SPACE |
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| Hou Quanwu,Wang Jian,Hu Hong,and Zhang Hong.ANALYSIS OF EFFECTS ON LOCATION ACCURACY OF SENSORS IN NARROW SPACE[J].Journal of Geodesy and Geodynamics,2013,33(1):117-122. | |
| Authors: | Hou Quanwu Wang Jian Hu Hong and Zhang Hong |
| Institution: | 1)Jiangsu Key Laboratory of Resources and Environmental,CUMT,Xuzhou 2211162)School of Environmental Science and Spatial Informatics,CUMT,Xuzhou 2211163)Shijiazhuang Mechanized Infantry Academy,Shijiazhuang 050000 |
| 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. |
| Keywords: | narrow space 3D complete coverage TDOA DOP(Dilution of Precision) sensors’ spacing |
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