The dissertation presents the method of controlling the designed scanning and tracking head (optical target seeker) [ which is used for detecting and tracking air targets emitting their own radiation, e.g. infrared radiation. The control algorithm consists in using the phase trajectories of control deviations. Digital simulations of the proposed solution have been conducted. The results of those simulations have been presented in a graphical form.
The article presents the process of tracking a maneuvering air target by the designed scanning and tracking seeker which is used for detecting and tracking air targets emitting own infrared radiation. The numerical analysis of the seeker dynamics in the phase of the programmed search of the air space and during the tracking of the detected target was performed. Also, the research results pertaining to the possibilities of controlling the device have been presented in a graphical form.
The paper presents the concept of controlling the designed optoelectronic scanning and tracking seeker. The above device is intended for the so-called passive guidance of short-range anti-aircraft missiles to various types of air maneuvering targets. In the presented control method, the modified linear-quadratic regulator (LQR) and the estimation of input signals using the extended Kalman filter (EKF) were used. The LQR regulation utilizes linearization of the mathematical model of the above-mentioned seeker by means of the so-called Jacobians. What is more, in order to improve the stability of the seeker control, vector selection of signals received by the optoelectronic system was used, which also utilized EKF. The results of the research are presented in a graphical form. Numerical simulations were carried out on the basis of the author’s own program developed in the programming language C++.
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