High-order pulsar timing for navigation
High-order pulsar timing for navigation
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发表时间：
2007-08
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通讯作者：
S. Sheikh;R. Hellings;R. Matzner
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文献类型：
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作者：
S. Sheikh;R. Hellings;R. Matzner
利用来自各种天体来源（包括天文卫星）观测数据的定时信息的航天器导航拟议概念需要适当的惯性参照系和明确的时间传递技术。这些定时方法必须适用于任何潜在的航天器位置，并且必须达到高性能以实现准确的导航。这里介绍的算法可以处理来自整个太阳系和其他地方的信号。这些算法包括高阶相对论效应的传播信号，必须纳入以获得精确的定时。比较现有的脉冲星定时算法在当前的软件代码，以及这里定义的时间传递算法。
Proposed concepts of spacecraft navigation that utilize timing information from observational data of variable celestial sources, including pulsars, require appropriate inertial reference frames and well-defined time transfer techniques. These timing methods must be operational for any potential spacecraft position and must reach high performance to achieve accurate navigation. Algorithms that can process the signal from these sources throughout the solar system and beyond are presented here. These algorithms include the high-order relativistic effects on the propagated signal that must be incorporated to attain precise timing. A comparison is presented of existing pulsar-timing algorithms in current software codes, as well as the time-transfer algorithms defined here.