Avrutov V. Development of the theory of autonomous determination of the navigation parameters of moving and stationary vehicles

The dissertation is devoted to solving a scientific problem creation of a theory of new methods for autonomous determination of navigation parameters of moving and stationary objects by creating methods for determining latitude and longitude using an inertial measurement unit on a fixed base, determining latitude, longitude and heading on a moving base, which makes it possible, in comparison with traditional SINS algorithms, to do without integration accelerometers output signals, and determination of longitude requires only the integration of gyroscopes output signals. The development of autonomous navigation and orientation systems has recently become of great importance. Such autonomous systems are primarily gimbaled inertial navigation systems (INS) and strapdown inertial navigation systems (SINS). The main principle of operation of INS and SINS is double integration of accelerometer output signals, as well as integration of gyroscope output signals into SINS. The presence of errors in accelerometers and gyroscopes leads to a growth in location errors over time. The first way to increase the accuracy of SINS is to improve their sensitive elements. The second way to increase the accuracy of SINS is to adjust their readings on satellite, astronavigation and other systems. However, such integrated navigation systems are no longer autonomous. It is important to create such autonomous inertial navigation systems that would not depend on the impressions of satellite and other navigation systems, would have sufficient accuracy and at the same time would have an affordable price. But alas, there is still no theory of such autonomous navigation systems, which would determine the location by different from standard algorithms for double integration of accelerometer readings. That is, there is a problem of creating new ways of autonomous determination of navigation parameters using sensitive elements of medium accuracy. Moreover, for fixed objects the autonomous determination of the initial coordinates or location is relevant, and for the moving ones - the autonomous determination of the location by different from the standard algorithms of double integration of the accelerometer readings. This necessitates the development of new scientifically sound methods and algorithms for autonomous determination of navigation parameters of moving and stationary objects, which would provide acceptable accuracy in determining the location in the conditions of external interference to radio navigation systems.