A Linear-Quadratic Stabilization System for a Canard-Controlled Missile

Bużantowicz, Witold

doi:10.21495/71-0-73

Cited by 2 publications

(14 citation statements)

References 2 publications

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“…namely, the angular rate ω of the airframe should be equal to the angular rateθ of the missile's velocity vector, and not depend on the dynamics of the missile itself [6][7][8]. This requirement, impossible to fulfill in practice however, leads to the conclusion that the absolute rotation angle of the airframe should be approximately equal to the absolute rotation angle of the missile velocity vector; i.e.…”

Section: Problem Formulationmentioning

confidence: 99%

“…In previous work [7,8], a complete solution was given for the controller in question. Here, a draft is presented for the sake of brevity.…”

Section: Stabilization System Designmentioning

confidence: 99%

“…In extremely unfavorable tactical conditions-despite the use of an adequate seeker stabilization loop-the target tracking process may break. It therefore becomes necessary to identify solutions enabling stabilization of the operating conditions of the on-board seeker [6][7][8]. They are often designed using adaptive linear control, which has certain benefits.…”

Section: Introductionmentioning

confidence: 99%

“…The fundamental difficulty with this approach is the necessity for the computations to be carried out in real time [19,27]. There are also certain technical hitches related to the software implementation, e.g., the weak conditioning of the matrices [7,8]. It is therefore valuable to find an analytical solution of the controller, which ensures adaptability according to the state of the system.…”

Section: Introductionmentioning

confidence: 99%

“…It has been shown that the proposed solution provides a favorable effect on the operating conditions of the seeker and a reduction in energy losses resulting from oscillations of the airframe. In turn, [8] signaled the possibility of introducing a single tuning parameter and improving the performance of the designed airframe stabilization system. The main contributions of this paper include: (a) a comparative analysis of the analytical solutions of a time-varying linear-quadratic airframe stabilization system; (b) a procedure for selecting appropriate tuning parameter values; and (c) an observation that the solutions obtained are symmetric pairs, which on the one hand confirms the correctness of the calculations, and on the other introduces the possibility of narrowing the range of the sought settings of the LQR tuning parameter.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Tuning of a Linear-Quadratic Stabilization System for an Anti-Aircraft Missile

Bużantowicz

2021

Aerospace

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A description is given of an application of a linear-quadratic regulator (LQR) for stabilizing the characteristics of an anti-aircraft missile, and an analytical method of selecting the weighting elements of the gain matrix in feedback loop is proposed. A novel method of LQR tuning via a single parameter ς was proposed and tested. The article supplements and develops the topics addressed in the author’s previous work. Its added value includes the observation that the solutions obtained are symmetric pairs, and that the tuning parameter ς proposed for the designed linear-quadratic regulator enables the selection of suitable parameters for the airframe stabilizing loop for the majority of the analytical solutions of the considered Riccati equation.

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Section: Problem Formulationmentioning

confidence: 99%

“…In previous work [7,8], a complete solution was given for the controller in question. Here, a draft is presented for the sake of brevity.…”

Section: Stabilization System Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Tuning of a Linear-Quadratic Stabilization System for an Anti-Aircraft Missile

Bużantowicz

2021

Aerospace

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A New Statistical Method for Determining the Clutter Covariance Matrix in Spatial–Temporal Adaptive Processing of a Radar Signal

Kawalec

Ślesicka

ŚLESICKI

2023

Sensors

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In this article, a new statistical method for estimating the clutter covariance matrix in space–time adaptive radar signal processing (STAP) is presented and studied. The new method was designed for multiple-input–multiple-output (MIMO) radar with time division multiplexing (TDM). An extensive analysis of statistical and non-statistical methods for estimating the clutter covariance matrix in STAP is presented in this paper. In addition, the STAP algorithm for the standard statistical SMI clutter covariance matrix estimation method, which is based on QR distribution, has been presented. The new method is based on LU distribution with partial pivoting. Simulation results confirm the validity of the presented model and theoretical assumptions. In addition, more accurate object detection results were demonstrated for specific computational examples than for other statistical methods. Considering the current analysis of the literature, it is noted that attention has now been focused worldwide on the study of non-statistical methods for estimating clutter covariance matrices in heterogeneous environments. Hence, it should be emphasized that the posted study fills a gap in current research on STAP.

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A Linear-Quadratic Stabilization System for a Canard-Controlled Missile

Cited by 2 publications

References 2 publications

Tuning of a Linear-Quadratic Stabilization System for an Anti-Aircraft Missile

Tuning of a Linear-Quadratic Stabilization System for an Anti-Aircraft Missile

A New Statistical Method for Determining the Clutter Covariance Matrix in Spatial–Temporal Adaptive Processing of a Radar Signal

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