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特殊传感器的共线方程及几何纠正 被引量:1
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作者 伍素贞 方子岩 莫志恒 《铁道勘察》 2011年第5期38-41,共4页
以框幅式航空摄影机成像及其共线方程为基础,分析特殊传感器的构像机理及其共线方程形式。阐述间接法数字微分纠正原理,传感器成像瞬间的中心投影共线方程就是间接法数字微分纠正的纠正变换函数。对于特殊传感器,用共线方程作为纠正变... 以框幅式航空摄影机成像及其共线方程为基础,分析特殊传感器的构像机理及其共线方程形式。阐述间接法数字微分纠正原理,传感器成像瞬间的中心投影共线方程就是间接法数字微分纠正的纠正变换函数。对于特殊传感器,用共线方程作为纠正变换函数时,其外方位元素的变化随每个摄影瞬间不同,因而实施纠正时将比框幅式航空影像的间接法数字微分纠正复杂得多。 展开更多
关键词 特殊传感器 共线方程 纠正变换函数 数字微分纠正
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3DT-PP:localization and path planning of mobile anchors over complex 3D terrains 被引量:1
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作者 王瑞锦 Qin Zhiguang +2 位作者 Li Dongfen Chen Dajing Wang Jiahao 《High Technology Letters》 EI CAS 2014年第4期367-375,共9页
Mobile anchors are widely used for localization in WSNs.However,special properties over 3D terrains limit the implementation of them.In this paper,a novel 3D localization algorithm is proposed,called 3 DT-PP,which uti... Mobile anchors are widely used for localization in WSNs.However,special properties over 3D terrains limit the implementation of them.In this paper,a novel 3D localization algorithm is proposed,called 3 DT-PP,which utilizes path planning of mobile anchors over complex 3 D terrains,and simulations based upon the model of mountain surface network are conducted.The simulation results show that the algorithm decreases the position error by about 91%,8.7%and lowers calculation overhead by about 75%,1.3%,than the typical state-of-the-art localization algorithm(i.e.,'MDS-MAP','Landscape-3D').Thus,our algorithm is more potential in practical WSNs which are the characteristic of limited energy and 3D deployment. 展开更多
关键词 concave/convex decomposition path planning for mobile anchor nodes 3D-localization algorithm wireless sensor network (WSN)
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