Methods for calculating the position of a GNSS receiver according to dual- and mono-frequency pseudo-measurements

摘要

The method involves determining a position of a Global Navigation Satellite Systems (GNSS)receiver (1) by calculation of single-frequency or two-frequency pseudo-distances corresponding to distances between satellites (S1-S4) and the receiver. The position of the receiver is calculated by estimation of an inter-frequency bias of two-frequency signals received in high frequency channels of the receiver. The inter-frequency bias of the signal is calculated to compensate measurements of the single-frequency or two-frequency pseudo-distances.