一种改进的三边定位算法
An improved trilateration positioning algorithm
【索引】高莉,杨雪苗.一种改进的三边定位算法[J].工矿千亿国际app下载,2020,46(2):78-81.
【Reference】GAO Li, YANG Xuemiao.An improved trilateration positioning algorithm[J].Industry and Mine Automation,2020,46(2):78-81.
【DOI】10.13272/j.issn.1671-251x.2019120032
【作者】高莉1,杨雪苗2
【Author】 GAO Li1,YANG Xuemiao2
【作者机构】1.江苏师范大学 电气工程及千亿国际app下载学院, 江苏 徐州221116;2.中国矿业大学 信息与控制工程学院, 江苏 徐州221116
【Unit】1.School of Electrical Engineering and Automation, Jiangsu Normal University, Xuzhou 221116, China;2.School of Information and Control Engineering, China University of Mining and Technology, Xuzhou 221116, China
【摘要】针对基于加权最小二乘(WLS)的三边定位算法在线性化过程中损失定位信息的问题,提出了一种改进的三边定位算法。该算法利用WLS算法粗略估计未知节点的坐标,并利用损失的定位信息构建定位模型,通过求解该定位模型实现精确定位。仿真结果表明,与基于WLS的三边定位算法相比,该算法有效提高了定位精度,且巷道长宽比越大,定位性能越好。
【Abstract】Aiming at the problem that trilateration positioning algorithm based on weighted least squares (WLS) lost positioning information in linearization process, an improved trilateration positioning algorithm was proposed. In the algorithm, WLS algorithm is used to roughly estimate coordinates of unknown nodes, and lost positioning information is used to construct positioning model, so precise positioning is achieved by solving the positioning model. The simulation results show that positioning accuracy of the proposed algorithm is obviously higher than that of the trilateration positioning algorithm based on WLS, and the larger the length-width ratio of roadway is, the better the positioning performance of the proposed algorithm is.
【关键词】 煤矿井下定位; 精确定位; 三边定位; 测距定位; 加权最小二乘
【Keywords】coal mine underground positioning; precise positioning; trilateration positioning; range positioning; weighted least squares
【文献出处】工矿千亿国际app下载,2020年2期
【基金】江苏省现代教育技术研究课题(2016-R-47695);徐州市科技计划项目(KC18006)
【分类号】TD655
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