METHOD FOR CORRECTING A PSEUDORANGE IN A RECEIVER FOR SATELLITE NAVIGATION

摘要

A correction is applied to the pseudorange measured by a satellite navigation receiver, operating on the basis of signals sampled at a sampling frequency F s , wherein the correction is based on the measured pseudorange itself. The correction may be a correction to the discriminator value determined in the DLL, or it may be correction to the actual pseudorange as such. The correction is specific for a particular PRN code and for the parameters of the receiver. The correction is therefore implemented in the receiver as a predefined function of the measured pseudorange, to be calculated in real time, or as a look-up table of pre-defined values at least between 0 and cT s , with T s equal to 1/F s and c the speed of light.