共被期刊论文引用了3次
您的检索式：您选中1篇文献正在查看引证文献汇总
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 北斗三号多频相位模糊度无几何单历元固定方法显示文摘北斗三号全球卫星导航系统目前已提供5个频率的观测数据,因此理论上可进行多频相位模糊度解算(MCAR)。本文系统研究了MCAR的基本理论和方法,包括三频(TCAR)、四频(FCAR)和五频(FiCAR)相位模糊度固定。首先,从线性组合角度出发,给出了TCAR、FCAR和FiCAR方法在内的基本数学模型。其次,探讨了高质量信号及在不同基线长度条件下的最优线性组合。此外,分析了利用无几何模型单历元模糊度固定的常用方法。最后,利用实测北斗三号五频观测数据进行了试验。结果表明,MCAR可有效进行单历元模糊度固定,同时频率数增加可显著提高模糊度固定成功率。 | 章浙涛 李博峰 何秀凤 | 2020 | 测绘学报2020，49，9： | 28 |
| 2 | Several Kinematic Data Processing Methods for Time-Correlated Observations显示文摘Time correlations always exist in modern geodetic data,and ignoring these time correlations will affect the precision and reliability of solutions.In this paper,several methods for processing kinematic time-correlated observations are studied.Firstly,the method for processing the time-correlated observations is expanded and unified.Based on the theory of maximum a posteriori estimation,the third idea is proposed after the decorrelation transformation and differential transformation.Two types of situations with and without common parameters are both investigated by using the decorrelation transformation,differential transformation and maximum a posteriori estimation solutions.Besides,the characteristics and equivalence of above three methods are studied.Secondly,in order to balance the computational efficiency in real applications and meantime effectively capture the time correlations,the corresponding reduced forms based on the autocorrelation function are deduced.Finally,with GPS real data,the correctness and practicability of derived formulae are evaluated. | Bofeng LI Zhetao ZHANG | 2019 | Journal of Geodesy and Geoinformation Science2019，2，4： | 4 |
| 3 | 时间相关观测的几种动态数据处理方法显示文摘现代大地测量数据中往往存在时间相关性,忽略观测值时间相关性会影响参数估值的精度和可靠性。因此,本文研究了几种时间相关观测的动态数据处理方法。首先,对观测值时间相关性的处理方法进行了扩展和统一。利用极大验后估计原理,提出了第3种思路,并在无历元公用参数和有历元公用参数两类模型下,详细推导了去相关变换法、差分变换法和极大验后估计法这3种思路的动态解,并对它们的特点和等价性进行了论证。其次,为了平衡实际应用中的解算效率且同时有效顾及时间相关性,利用自相关函数表达时间相关性,导出了相应退化形式。最后,通过GPS实测数据验证了本文理论公式的正确性和实用性。 | 李博峰 章浙涛 | 2018 | 测绘学报2018，47，12： | 4 |
您所在的机构暂未开通此部分的功能，请联系管理员