【摘要】 在非圆轨道GPS和LEO卫星条件下,给出一种较为直接的GPS/LEO掩星反演地球大气参数技术中弯曲角序列的迭代算法,并在理论上对该迭代法的收敛性进行了严格的数学证明。利用GPS掩星反演模拟程序,定量估算了卫星圆轨道假设对GPS/LEO掩星反演地球大气参数的影响,并验证了在非圆轨道条件下各种迭代法的一致性。指出了文献中给出的级数展开迭代算法的不足之处。更多还原

【Abstract】 On the assumption of non--circular orbit for satellites GPS and LEO, a moredirect iteration algorithm of atmospheric bending angles was given in GPS/LEO occultationtechnique probing Earth’s atmosphere. A mathematical proof of the convergence of this it-eration method was listed. By means of the GPS occultation simulation software packageSHAOOS, the influences of assumption of circular orbit GPS/LEO satellites on retrievedatmospheric profiles were estimated quantitatively, and to verify the coincidence betweendifferent iteration processes was also presented numerically. Some corrections to the seriesexpansion method of non-circular orbit GPS/LEO occultation retrieval introduced in a ref-erence were briefly attached.更多还原