Phase ambiguity resolution based on the inertial measurements in TOF/AOA UWB LNS

The article focuses on 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 section “Derivation of expression”. In the section “Modeling”, the relations obtained in the previous section are confirmed quantitatively by the results of a simulation experiment. In the 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.