基于后方交會的室內空間測量定位系統(tǒng)定向方法
發(fā)布時間:2018-11-17 14:18
【摘要】:為了實現(xiàn)室內空間測量定位系統(tǒng)(w MPS)發(fā)射站定向參數(shù)的快速、精確校準,提高其方法的適應性,研究了一種新的發(fā)射站定向方法.本方法借鑒工程測量中的后方交會原理,在w MPS發(fā)射站數(shù)學模型基礎上,引入坐標控制場建立冗余光平面約束,得出參數(shù)優(yōu)化函數(shù).通過拉格朗日乘子法求取定向參數(shù)初值,進行優(yōu)化解算.本方法可以實現(xiàn)發(fā)射站的自動定向.搭建了實驗平臺并以激光跟蹤儀測量結果作為比對基準,驗證了校準方法的準確性.由本方法完成定向的w MPS測量點位誤差優(yōu)于±0.3 mm,且滿足大尺寸坐標測量的精度要求.
[Abstract]:In order to realize the fast and accurate calibration of the orientation parameters of the (w MPS) transmitting station in the indoor space measurement and positioning system and to improve the adaptability of the method, a new method for the orientation of the transmitting station is studied. Based on the mathematical model of w MPS transmitter station, the coordinate control field is introduced to establish redundant optical plane constraints, and the parameter optimization function is obtained by referring to the principle of rear intersection in engineering survey. The initial value of directional parameters is obtained by Lagrange multiplier method, and the optimization solution is carried out. The method can realize the automatic orientation of the transmitting station. The accuracy of the calibration method is verified by setting up the experimental platform and using the measurement results of laser tracker as the reference. The position error of w MPS measured by this method is better than 鹵0. 3 mm, and meets the precision requirement of large size coordinate measurement.
【作者單位】: 精密測試技術及儀器國家重點實驗室(天津大學);
【基金】:國家自然科學基金資助項目(51305297,51405338) 國家重大科學儀器設備開發(fā)專項資助項目(2013YQ35074702)
【分類號】:TN249
本文編號:2338093
[Abstract]:In order to realize the fast and accurate calibration of the orientation parameters of the (w MPS) transmitting station in the indoor space measurement and positioning system and to improve the adaptability of the method, a new method for the orientation of the transmitting station is studied. Based on the mathematical model of w MPS transmitter station, the coordinate control field is introduced to establish redundant optical plane constraints, and the parameter optimization function is obtained by referring to the principle of rear intersection in engineering survey. The initial value of directional parameters is obtained by Lagrange multiplier method, and the optimization solution is carried out. The method can realize the automatic orientation of the transmitting station. The accuracy of the calibration method is verified by setting up the experimental platform and using the measurement results of laser tracker as the reference. The position error of w MPS measured by this method is better than 鹵0. 3 mm, and meets the precision requirement of large size coordinate measurement.
【作者單位】: 精密測試技術及儀器國家重點實驗室(天津大學);
【基金】:國家自然科學基金資助項目(51305297,51405338) 國家重大科學儀器設備開發(fā)專項資助項目(2013YQ35074702)
【分類號】:TN249
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