Phase Ambiguity Solution on the Base of UWB LNS Using a Dual-Element Antenna Array

This work is devoted to creating a criterion for selecting the antenna array base line for unambiguous determination of the coordinates of the consumer, depending on the characteristics of the measuring devices used. As an example of the device described above, can be a complex system consisting of an inertial unit and angle of arrival (AoA) ultra-wideband (UWB) navigation system. The introduction shows the problems and proves the relevance and feasibility of the research carried out, which is discussed in this paper. The basic formula relations for the derivation of the criterion to solve the ambiguity of phase measurements are given in the third section of the paper (Derivation of expression). In the fourth section ("Modeling"), the relations obtained in the third section are confirmed quantitatively by the results of a simulation experiment. In the section (Conclusion) the authors propose the maximum permissible base line of the antenna array, with given accuracy characteristics at which it is possible to uniquely determine the coordinates of the consumer.