2009
DOI: 10.1007/s12206-009-0915-1
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An analytical guidance law of planetary landing mission by minimizing the control effort expenditure

Abstract: An optimal trajectory design of a module for the planetary landing problem is achieved by minimizing the control effort expenditure. Using the calculus of variations theorem, the control variable is expressed as a function of costate variables, and the problem is converted into a two-point boundary-value problem. To solve this problem, the performance measure is approximated by employing a trigonometric series and subsequently, the optimal control and state trajectories are determined. To validate the accuracy… Show more

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Cited by 7 publications
(3 citation statements)
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“…Also, m 0 and _ m are initial mass and mass variation rate of the spacecraft, respectively. To avoid several computational difficulties and present a more meaningful definition of the system, it is attempted to transfer the equations and boundary conditions to non-dimensional form by using a set of reference parameters of (u*, y*, t*, m*) as [11] "…”
Section: Derivation Of State-space Equations Of the Orbit Transfer Problemmentioning
confidence: 99%
See 1 more Smart Citation
“…Also, m 0 and _ m are initial mass and mass variation rate of the spacecraft, respectively. To avoid several computational difficulties and present a more meaningful definition of the system, it is attempted to transfer the equations and boundary conditions to non-dimensional form by using a set of reference parameters of (u*, y*, t*, m*) as [11] "…”
Section: Derivation Of State-space Equations Of the Orbit Transfer Problemmentioning
confidence: 99%
“…A novel approach to synthesize the optimal feedback law for the satellite injection problem is introduced using fuzzy systems by Pourtakdoust et al [9] In this work, an attempt was made to develop the closed-loop fuzzy guidance law in the presence of environment noises and system uncertainties. Afshari et al [1,[10][11][12] and Roshanian et al [13] have tried to design optimal guidance solutions for different space missions by employing mathematical theories, such as perturbation theorem, backward sweep method, and calculus of variations in exact forms. Considering novel approaches of control theories such as fuzzy guidance law (FGL) and L 1 adaptive method has caused new guidance solutions to be achieved.…”
Section: Introductionmentioning
confidence: 99%
“…Naghash et al [7] developed an explicit guidance law that maximized terminal velocity for a re-entry vehicle to a fixed target employing inverse problem approach and genetic algorithm. Afshari et al [8,9] worked on the development of optimal feedback control law for several space missions. To achieve their goals, they employed analytical procedures to solve nonlinear two-point boundary value problems.…”
Section: Introductionmentioning
confidence: 99%