Resumen
Procedure to estimate the position of a receiver by means of gnss satellites. Multifrequency and multiconstelation procedure for the determination of the position of a receiver by means of gnss satellites, which thanks to the steps of: obtaining the pseudorange, ionospheric bias and ambiguity vector, determination of a covariance matrix for each of the previous parameters and estimation of the position of the receiver and the lag of its clock from the pseudo-distances, its covariance matrix, and precise ephemerides of the satellites. The procedure thus allows to process triple frequency data and combine signals from different navigation systems. (Machine-translation by Google Translate, not legally binding)