Synthesis of a Two-Stage Algorithm for Estimating Antenna Array Orientation Angles from GNSS Signals

Global Navigation Satellite Systems (GNSS) have become part of everyday human life. It is impossible to imagine transportation, unmanned aerial vehicles, as well as land surveying and geodesy without GNSS. In addition to determining the exact location of objects, GNSS receiver is used to solve the problem of determining the user's orientation angles from signals. The mode of determining the spatial orientation of mobile objects based on the results of measuring the parameters of navigation satellite (NS) received by spatially separated antennas is one of the most promising directions for expanding the functionality of GNSS. Both one-step and filtering algorithms for estimating consumer spatial orientation are common today. Thus, the purpose of this paper is to carry out the synthesis of a two-step algorithm for estimating antenna array orientation angles from GNSS signals, and to carry out simulation modeling of the synthesized algorithm. The object of the study is a two-step algorithm for estimating the orientation angles of an antenna array. As a result of the study, a two-stage algorithm for antenna array orientation angle estimation was developed and simulation modeling was performed. The root-mean square deviation of the course angle estimates was 0.01 degrees.