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Formation flying of small satellites using suboptimal MPSP guidance

Joshi, Girish and Padhi, Radhakant (2013) Formation flying of small satellites using suboptimal MPSP guidance. In: 2013 American Control Conference (ACC), 17-19 June 2013, Washington, DC, pp. 1584-1589.

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Abstract

Using the recently developed model predictive static programming (MPSP), a suboptimal guidance logic is presented in this paper for formation flying of small satellites. Due to the inherent nature of the problem formulation, MPSP does not require the system dynamics to be linearized. The proposed guidance scheme is valid both for high eccentricity chief satellite orbits as well as large separation distance between chief and deputy satellites. Moreover, since MPSP poses the desired conditions as a set of `hard constraints', the final accuracy level achieved is very high. The proposed guidance scheme has been tested successfully for a variety of initial conditions and for a variety of formation commands as well. Comparison with standard Linear Quadratic Regulator (LQR) solution (which serves as a guess solution for MPSP) and another nonlinear controller, State Dependent Riccati Equation (SDRE) reveals that MPSP guidance achieves the objective with higher accuracy and with lesser amount of control usage as well.

Item Type: Conference Paper
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Additional Information: Copyright of this article belongs to IEEE.
Keywords: Satellite Formation Flying; Model Predictive Static Programming; MPSP
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)
Date Deposited: 20 Dec 2013 09:38
Last Modified: 20 Dec 2013 09:38
URI: http://eprints.iisc.ernet.in/id/eprint/48078

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