A Control of Modified Optical Scanning and Tracking Head to Detection and Tracking Air Targets

Gapiński, Daniel; Stefański, Konrad

doi:10.4028/www.scientific.net/ssp.210.145

Cited by 11 publications

(9 citation statements)

References 4 publications

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“…Numerical investigations were carried out using Matlab/Simulink package. Initial conditions for the autonomous flight of the missile guided onto a ground target take the following values: controllers were selected in the optimal way due to the minimal deviation between the programmed and actual value and were equal to (Gapiński & Stefański, 2014): ph k = 3.75; dh k = 0.3; pa k = 85; da k = 0.12;…”

Section: Digital Simulation Resultsmentioning

confidence: 99%

Pre-programmed flight path of air-to-ground missile

2018

Engineering Mechanics

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Section: Digital Simulation Resultsmentioning

confidence: 99%

Pre-programmed flight path of air-to-ground missile

2018

Engineering Mechanics

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“…where: S S -area of surfaces (S S = 0.009 m 2 ); ρ-air density (ρ = 1.225 kg/m 3 ); α Y , α Z -the actual deflection angles of the aerodynamic control surfaces. The control object is guided onto a target using a thermal imaging head [23,24] or a TV head in the case of a medium-range missile, which enables the "fire and correct" mode. It is assumed that a homing head operates correctly, and the missile location data relative to the target is known.…”

Section: Model Of a Hypothetical Anti-tank Guided Missilementioning

confidence: 99%

Control Analysis with Modified LQR Method of Anti-Tank Missile with Vectorization of the Rocket Engine Thrust

et al. 2022

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This article approaches the issue of the optimal control of a hypothetical anti-tank guided missile (ATGM) with an innovative rocket engine thrust vectorization system. This is a highly non-linear dynamic system; therefore, the linearization of such a mathematical model requires numerous simplifications. For this reason, the application of a classic linear-quadratic regulator (LQR) for controlling such a flying object introduces significant errors, and such a model would diverge significantly from the actual object. This research paper proposes a modified linear-quadratic regulator, which analyzes state and control matrices in flight. The state matrix is replaced by a Jacobian determinant. The ATGM autopilot, through the LQR method, determines the signals that control the control surface deflection angles and the thrust vector via calculated Jacobians. This article supplements and develops the topics addressed in the authors’ previous work. Its added value includes the introduction of control in the flight direction channel and the decimation of the integration step, aimed at speeding up the computational processes of the second control loop, which is the LQR based on a linearized model.

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“…The detailed principle of operation and innovation of the seeker is presented in [16,19]. At the present stage of research, a mathematical model of the dynamics of the presented device has been developed, various algorithms of control of the seeker's optical axis have been analysed in [16,[20][21][22][23], and optimal operating parameters of the seeker have been determined while maintaining the stability conditions specified by the so-called Lapunov method [24]. In the course of the above-mentioned research, problems with precise control of the device axis in the so-called second operating mode of the seeker (Figure 4), in which the seeker tracks the previously detected air target with the small scanning angle (Figure 5).…”

Section: Introductionmentioning

confidence: 99%

Control of Optoelectronic Scanning and Tracking Seeker by Means the LQR Modified Method with the Input Signal Estimated Using of the Extended Kalman Filter

Gapiński¹,

Koruba

2021

Energies

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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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A Control of Modified Optical Scanning and Tracking Head to Detection and Tracking Air Targets

Cited by 11 publications

References 4 publications

Pre-programmed flight path of air-to-ground missile

Pre-programmed flight path of air-to-ground missile

Control Analysis with Modified LQR Method of Anti-Tank Missile with Vectorization of the Rocket Engine Thrust

Control of Optoelectronic Scanning and Tracking Seeker by Means the LQR Modified Method with the Input Signal Estimated Using of the Extended Kalman Filter

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