The Schumann resonance frequencies are a set of eigenmodes in the extremely low frequency (ELF) portion of the electromagnetic field spectrum. These frequencies are only present for planetary-like bodies with a substantial ionosphere acting as a perf

GPS伪距单点定位，包括导航文件、观测文件、精密钟差和精密星历的读取，对流层Hopfield模型，电离层K8模型，采用最小二乘法，最后通过调用matlab来计算测站坐标。对GPS编程初学者是很好的编程哦。-GPS pseudorange point positioning, including navigation documents, observation files, precision clock bias and precision ephemeris read, Hopfield m

读取IGS文件（观测文件*.*o 广播星历*.*n；精密星历*.sp3；修正电离层对流层）。均是matlab函数形式，可直接用于GPS matlab数据处理-reading IGS files (oberservation file*.*o navigation files*.*n precise orbit*.sp3) correct errors of Ionosphere delay and Tropsphere delay