1PN近似下脉冲星导航的观测方程及精度分析

摘要

The time of arrival equation of pulse and the timing equation of pulsar navigation in 1PN approximation is derived.The general relativity effect is analyzed.The binomial expand expression of timing equation is given.The timing error due to the pulsar ephemeris is discussed.In the end,the effects of planet ephemeris error and the flattening of bodies are presented.%完整推导1PN度规形式下脉冲到达时间方程与脉冲星导航的观测方程,分析导航观测中的相对论效应,给出观测方程的级数展开形式。在此基础上分析脉冲星历表参数对观测时间的影响,讨论行星星历误差对观测时间的影响,推导星体扁率引起的测量时延表达式,分析不同星体扁率引起的时延量级。