光电工程, 2011, 38 (10): 6, 网络出版: 2011-10-21   

wMPS测角不确定度研究

Research on Angle Measurement Uncertainty of wMPS
作者单位
1 天津大学精密测试技术及仪器国家重点实验室,天津 300072
2 天津工业大学电子与信息工程学院,天津 300160
摘要
室内空间测量定位系统 (wMPS)是一种基于多向定位原理的新型网络式测量系统,为分析系统单站的测角不确定度,建立了角度测量模型,分析了影响系统测角精度的误差源并给出误差的评估方法,利用蒙特卡罗统计法进行了仿真,获得了测角误差的分布。提出一种以多面棱体和平行光管作为调整手段,多齿分度台为角度参考基准的发射站水平角不确定度分析平台,实验结果表明该平台的有效性并获取测量空间内发射站的水平角不确定度为 2.2″。
Abstract
Workspace Measurement Position System (wMPS) is a newly developed system based on multi-directional positioning principle. Initially, the angular measurement model was proposed for angle uncertainty of the transmitter. The uncertainties in the vertical and horizontal angles were analyzed and a feasible method for estimating the uncertainty of parameters was proposed. Then, the uncertainty of parameters was propagated from the angular measurement model using Monte Carlo simulation and the angular uncertainty distribution was determined by the simulation. Finally, horizontal angle uncertainty evaluation platform based on polygonal prism and collimator was designed by using angle dividing table as angle reference. Experiments were then carried out to determine the actual uncertainty in the horizontal angle. Results show that the platform is effective and horizontal angle uncertainty is about 2.2″ in the working space.

耿磊, 邾继贵, 熊芝, 杨学友, 叶声华. wMPS测角不确定度研究[J]. 光电工程, 2011, 38(10): 6. GENG Lei, ZHU Ji-gui, XIONG Zhi, YANG Xue-you, YE Sheng-hua. Research on Angle Measurement Uncertainty of wMPS[J]. Opto-Electronic Engineering, 2011, 38(10): 6.

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