The features of the application of self-dual and “close in meaning” functions properties for the synthesis of highly reliable digital systems using the data inversion method are considered. It is proposed to use the properties of self-anti-dual functions when controlling calculations in devices implemented with the use of time redundancy and pulse mode of operation. The checker for self-anti-dual signals is developed. The conditions for synchronizing the delay element, the frequency of changing the operating and inverse input combinations, the frequency of the signal at the synchronization input of the checker and the moment of changing the working input combination, necessary for the correct operation of the built-in control circuits, are determined.

The problem of ensuring timely and effective detection and tracking of highly dynamic aeroballistic objects (HDAO) is considered. To improve the accuracy of object tracking by ground-based sensors, a new method is proposed for aggregating predictive estimates of the HDAO trajectory and measurement noise using an ensemble Kalman filter, which implements an approximation using cubic spline interpolation in conjunction with forecasting time sequences. This approach makes it possible to more accurately predict the trajectory of HDAO in nonlinear sections of motion and significantly improves target tracking by ground-based sensors. To confirm the effectiveness of the proposed approach, a mathematical model of the observation system is developed, and the effectiveness of using an ensemble Kalman filter for tracking HDAO is assessed in comparison with a conventional Kalman filter.

The key features of the architecture of a fault-tolerant distributed control system for the SamSat-ION nanosatellite are presented. One of the features of the architecture is the use of a “master/slave” approach, for which each on-board system has equivalent controllers connected to a common data bus, and each controller can act as a master on the bus and access other systems directly. Equipping the on-board computer with a dual-core controller with an asymmetric core structure allows to increase productivity - collect and store telemetry on the slave core, and execute the flight cyclogram on the master core. Information exchange between SamSat-ION nanosatellite systems is carried out using a synchronous I2C data transmission bus; all on-board systems can be controlled both from the on-board computer and from the receiver using commands from the nanosatellite flight control center, which increases the fault tolerance of SamSat-ION.

The traditional PI and PID controllers used in the existing systems of subordinate control of regulated and tracking electric drives do not provide the necessary high quality of regulation. The purpose of the work is to eliminate over-regulation, fluctuations, and increased inertia in electric drives during transients. To solve the problem of ensuring the specified speed and accuracy of the tracking system with a minimum time of transient processes, fundamentally new software controllers based on predicators are developed. A method of synthesis of these regulators in relation to regulated and tracking electric drives is considered. The results of simulation modeling of the regulated and tracking electric drives, as well as test data of the regulated electric drive with new regulators are presented.

To improve navigation support for a user in conditions of limited “visibility” of a satellite radio navigation system constellation, an algorithm for estimating a dynamic object location is proposed based on a numerical optimization method, both with and without the use of heterogeneous auxiliary information. The algorithm can serve as a backup to increase the user's navigation support stability and allows to estimate an object location with meter and even decimeter accuracy, and the object time scale displacement relative to the system scale - with an accuracy of tens of nanoseconds.

The solution to the problem of detecting failures of sensors in the inertial navigation system of an unmanned surface vessel is considered. An algorithm based on a full order state observer is proposed. A failure detection condition is introduced based on the mismatch signal vector and threshold value. To detect a failed sensor, directional mismatch signal generators are used. The proposed algorithm is applied to the second-order Nomoto vessel model. Angular and linear velocity meters were selected as sensors tested for failures. In the process of synthesis of the failure detection algorithm, two observers were constructed, each of which is sensitive to failures of an individual sensor. Results of computer simulation in the MatLab Simulink software package are presented, confirming the effectiveness and efficiency of the proposed approach. The developed algorithm makes it possible to detect failures of inertial navigation system sensors without using additional measuring instruments, which helps reduce maintenance and diagnostic costs, as well as reduce the time spent on detecting problems.

The capabilities of ready-made units of power supply via optical fiber (PoF platforms) of low power up to a few watts for the development of systems for collecting information coming from a carbon monoxide sensor are investigated. The operability of the system is demonstrated, its shortcomings are noted: low efficiency, complexity of modernization, lack of a system for adjusting the power of a laser diode with computer control through a microcontroller. A power supply system via medium-power optical fiber (tens of watts) is developed, on the basis of which a prototype system for monitoring remote sensors of physical quantities is created. The prototype is tested in various operating modes. Recommendations are given for the use of the number of power supply channels depending on the peak electrical power consumed by individual sensors and the system as a whole. Recommendations have been developed for optimizing operating modes in order to increase the efficiency and reliability of the system by reducing the operating temperature of the laser diode and photoelectric converters.

The possibility of creating a fiber-optic mass sensor using microbends of single-mode optical fiber is investigated. It is found that for a constant value of the mass influencing the microbend, an increase in the microbend formation diameter leads to a weakening of the power of optical radiation at the microbend. An experimental setup is proposed and used to deduce that the highest sensitivity to impact mass is observed for optical fiber G 655 at all the wavelengths applied. The maximum sensitivity for optical fiber G 655 is obtained at a wavelength of 1625 nm. It is established that for mass determination with microbends of single-mode optical fiber, it is advisable to use microbends formed by a metal wire with a diameter of 200 μm, a wavelength of 1625 nm, and the G 655 optical fiber.