On Solving the Multi-Constellation Pseudorange Equations

JYH-CHING JUANG

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On Solving the Multi-Constellation Pseudorange Equations

机译：关于多星座伪距方程的求解

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Future Global Navigation Satellite System (GNSS) receivers may employ a combination of different navigation satellite constellations to provide positioning, navigation, and timing information. As different constellations may not be time-synchronized, the multi-constellation navigation problem involves the determination of position of the receiver and clock bias with respect to each constellation. Even though iterative and linearization method may remain applicable for terrestrial users when the initial position error is not too significant, the fact that the multi-constellation navigation equations are augmented with additional unknowns demands some investigation into the resulting solvability. In this paper, a spectral decomposition approach is proposed to characterize all admissible solutions of a multi-constellation navigation problem. The solvability of the problem is addressed, all potential solutions are determined, and the navigation errors are analyzed. By applying the proposed algorithm to envisioned future multi-constellation navigation problems, some potential pitfalls in combined GPS+QZSS and GPS+Galileo navigation are identified.

机译：未来的全球导航卫星系统（GNSS）接收器可能会采用不同导航卫星星座的组合来提供定位，导航和定时信息。由于不同的星座可能无法进行时间同步，因此多星座导航问题涉及确定接收器的位置以及相对于每个星座的时钟偏差。尽管当初始位置误差不太明显时，迭代和线性化方法可能仍适用于地面用户，但多星座导航方程式增加了其他未知数这一事实要求对所得的可解性进行一些研究。在本文中，提出了一种频谱分解方法来表征多星座导航问题的所有可允许解。解决了问题的可解决性，确定了所有可能的解决方案，并分析了导航错误。通过将提出的算法应用于未来的多星座导航问题，确定了GPS + QZSS和GPS + Galileo组合导航中的一些潜在陷阱。

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来源
《Navigation》 |2010年第3期|p.201-212|共12页
作者
JYH-CHING JUANG;
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作者单位

National Cheng Kung University, Tainan 700, Taiwan;

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收录信息美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
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3. Universally Convergent Statistical Solution of Pseudorange Equations [J] . JONATHAN D. WOLFE, JASON L. SPEYER Navigation . 2003,第4期

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On Solving the Multi-Constellation Pseudorange Equations

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