The spherical harmonics model to describe geopotentials relies on recursive algorithms,whose computational efficiency degrades significantly if the order of
To overcome the negative influences of exceptional fiber optic gyro (FOG) signal on the performances of INS/GPS integrated navigation system,a FOG signal de
The ionospheric delay is the predominant error source limiting the required positioning accuracy of GNSS whose estimation accuracy affects the effectiveness
The changes of the earth rotation,the plates movement and the environment of observation can cause the point shift in the GPS network,even if the observatio