改进的数字天顶仪定位方法

发布时间：2017-12-31 08:16

本文关键词：改进的数字天顶仪定位方法　出处：《红外与激光工程》2015年04期 　论文类型：期刊论文

【摘要】：针对数字天顶仪原有方法计算过程复杂和计算过程中存在误差的问题,通过改变时间补偿方式和优化迭代核心,提出了一种改进的数字天顶仪定位方法。该方法在切平面中进行均值过程,消除了原方法运算中引入的误差,也避免了切平面变换和反变换的反复计算,从而大幅简化了计算流程。通过实验比较了传统方法与改进方法的计算效率和精度,结果表明:改进方法的计算效率比原方法提高了至少6倍;改进方法赤纬的计算精度比原来的15米左右提高了约1.05 m。因此,改进方法能够在一定程度上提高定位的精度。
[Abstract]:In view of the complexity of the original method and the error in the calculation process of the digital zenith instrument, the method of time compensation is changed and the core of iteration is optimized. An improved positioning method for digital zenith is proposed, which carries out the mean value process in the tangent plane, eliminates the errors introduced in the original method, and avoids the repeated calculation of the tangent plane transformation and the inverse transformation. The computational efficiency and accuracy of the traditional method and the improved method are compared by experiments. The results show that the computational efficiency of the improved method is at least 6 times higher than that of the original method. The accuracy of the improved method is about 1.05 m higher than that of the original 15 m. Therefore, the improved method can improve the positioning accuracy to a certain extent.
【作者单位】：第二炮兵工程大学202教研室;
【基金】：国家自然科学基金(41174162)
【分类号】：P111.31
【正文快照】： 0引言数字天顶仪系统是一种高精度的天文定位系统,它主要由光学望远镜、CCD传感器、GPS接收机、调平系统、控制系统和数据处理系统等构成,能够高精度、高自动化和实时地测量定位,在大地测量等方面有着非常重要的应用价值[1-2]。德国Hannover大学自上世纪80年代已经开始研究天

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