| 一种改进的三边定位算法 |
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| 引用本文： | 高莉,杨雪苗. 一种改进的三边定位算法[J]. 工矿自动化, 2020, 46(2): 78-81 |
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| 作者姓名： | 高莉 杨雪苗 |
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| 作者单位： | 江苏师范大学电气工程及自动化学院,江苏徐州 221116;中国矿业大学信息与控制工程学院,江苏徐州 221116 |
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| 基金项目： | 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) |
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| 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。
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| 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 |
An improved trilateration positioning algorithm |
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| GAO Li,YANG Xuemiao. An improved trilateration positioning algorithm[J]. Industry and Automation, 2020, 46(2): 78-81 |
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| Authors: | GAO Li YANG Xuemiao |
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| Affiliation: | (School of Electrical Engineering and Automation,Jiangsu Normal University,Xuzhou 221116,China;School of Information and Control Engineering,China University of Mining and Technology,Xuzhou 221116,China) |
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| 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. |
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| Keywords: | coal mine underground positioning precise positioning trilateration positioning range positioning weighted least squares |
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