Measuring the Angular Orientation of Objects in Radio Navigation in the Absence of One of the Antennas

This article presents a method for measuring the angular orientation of objects in radio navigation systems, based on an iterative approach. The method is intended for satellite systems installed on a ship that determine the orientation angles of the ship. An approach has been developed to calculate orientation angles by introducing corrections in real time. The mechanism that is used is based on the Euler angle matrix. It allows you to calculate all three orientation angles: heading, roll, trim. In this matrix, its elements are the direction cosines of the base vector of the three-antenna system (three-antenna compass). Using the antenna system, the heading, roll and trim angles are calculated. In this work, the problem of implementing a single-base compass is solved, that is, only two antennas are used for the situation of loss of radio navigation data from one of the antennas. The accuracy of calculating orientation angles in an antenna compass when one antenna is lost was checked, and errors were determined that show how accurate it is compared to a three-antenna compass. This experiment was modeled mathematically. A solution was compared that determined orientation angles from three antennas, then one antenna was turned off in the program. The results obtained showed that the method is applicable for use in real navigation systems. #CSOC1120.