Satellite formation flying using variable structure model reference adaptive control

Shahid, Kamran; Kumar, Krishna Dev

doi:10.1243/09544100jaero405

Cited by 14 publications

(12 citation statements)

References 29 publications

(29 reference statements)

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“…Figure 1 is a schematic diagram of collision probability calculation method in the encounter plane. Because we only care about the relative position error covariance matrix of the satellite collision probability, the upper left corner matrix 3*3 of the relative state covariance matrix () Pt is obtained [7]. Marked as: X P .…”

Section: Calculation Of Collision Probabilitymentioning

confidence: 99%

Research on the Calculation Method of the Collision Probability of Satellite Formation Flying

He¹,

Zhang²

2017

dtetr

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Abstract. For some reasons (such as the failure of a satellite or the formation of a satellite formation mission), it is necessary to reconstruct the formation. In this process, the research on satellite collision avoidance has received extensive attention. In this paper, by deriving the initial state covariance matrix of the satellite, the collision probability density function was integrated in a specific region of the satellite, then the collision probability of formation satellites was obtained. The simulation experiments show that the method has great significance for the collision between satellites.

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Section: Calculation Of Collision Probabilitymentioning

confidence: 99%

Research on the Calculation Method of the Collision Probability of Satellite Formation Flying

He¹,

Zhang²

2017

dtetr

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“…Most importantly, they are used in a lot of application from automotive vehicles to aerospace, UAV's, robotics motion control and etc. In [8], the problem of formation control of spacecraft using VS-MRAC methodology with the leader-following approach for satellite is addressed. Stability of formation is proved by developing lyapunov function.…”

Section: Introductionmentioning

confidence: 99%

BLDC Multi-Motor Speed Synchronization by Leader Following Multi-Agent and Hybrid Control

Masroor¹,

Chen²,

Aamir³

et al. 2016

IJHIT

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In this article, a unique and innovative design for addressing the speed synchronization problem in a multi-motor system using Brush less DC (BLDC), motors is presented by utilizing motor back emf equation and rotor position commonly called sensor less technique. In the proposed method, the system is modelled as a consensus problem of leader following multi-agent system (MAS), and a hybrid controller is designed by using Model Reference Adaptive Control (MRAC) along with Variable Structure (VS) control technique of Sliding Mode Control (SMC), herein called Variable Structure Model Reference Adaptive Control (VS-MRAC). The consensus algorithm of MAS (reformed w.r.t motor speed data), is fused with the hybrid controller to reach consensus on speed regulated by proposed hybrid controller. The stability of a system is endorse by designing a Lyapunov function. The efficiency of the proposed methodology is proven by simulations performed in MATLAB and the acquired results validate the success of proposed design methodology.

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“…Recently, authors have designed adaptive variable structure control systems for satellite formation flying (SFF) [27][28][29]. The controller of [27] compensates for thrust misalignment and disturbances.…”

Section: Introductionmentioning

confidence: 99%

“…The controller of [27] compensates for thrust misalignment and disturbances. In the adaptive variable structure control laws of [28][29], the uncertainty bounding parameters are adapted for stabilization. Variable structure control technique yields discontinuous control laws.…”

Section: Introductionmentioning

confidence: 99%

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Adaptive Output Feedback Spacecraft Formation Flying Via Observer Based Feedback Linearization

Lee

Singh

2013

51st AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition

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The paper presents a new adaptive output feedback satellite formation control system for satellites with uncertain relative dynamics. The dynamics of the follower satellite, relative to the leader spacecraft which is moving in an elliptic orbit, include disturbance forces and parameter uncertainty. It is assumed that only the relative position of the follower satellite is available for feedback. The objective is to design a controller for the tracking of reference relative position trajectories. An adaptive control system is designed which includes a high-gain observer to provide the estimates of the lumped unknown and uncertain functions, and the relative velocity of the follower satellite. Compared to existing adaptive satellite formation controllers, in which controller parameters are tuned, here the estimated function of the control law provides adaptivity. The control system accomplishes semiglobal stability in the closed-loop system, and the control law recovers the performance of a feedback linearizing control system after a short transient period. Simulation results are presented which show that the designed control system accomplishes precise formation control, despite the presence of disturbance forces and parameter uncertainty.

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Satellite formation flying using variable structure model reference adaptive control

Cited by 14 publications

References 29 publications

Research on the Calculation Method of the Collision Probability of Satellite Formation Flying

Research on the Calculation Method of the Collision Probability of Satellite Formation Flying

BLDC Multi-Motor Speed Synchronization by Leader Following Multi-Agent and Hybrid Control

Adaptive Output Feedback Spacecraft Formation Flying Via Observer Based Feedback Linearization

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