Unambiguous objects positioning by means of phase radionavigation system signals

In order to ensure unambiguous objects positioning, it is necessary to determine value of received signals total phase shift at the lowest metric frequency in the multirange phase radionavigation system. The total phase shift can be defined by means of rough coordinates of onboard station. The approximate positioning of onboard station is obtained by means of the direction-finding method. Coordinates of onboard station, which defined at the first stage, are used as an initial approximation in ambiguity resolution of the phase measurement determined on a converting measurement method. As a result values of total phase shifts are known and are used to calculate the high-precision coordinates of onboard station. To justify the theoretic part there are results of accuracy estimation of rough coordinates determination of the onboard station, which proves that this method can be used for real systems.