INCREASING ORBITAL ENERGY VIA TETHER RETRIEVAL AND DEPLOYMENT IN A SYNCHRONOUS CONFIGURATION
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The aim of this thesis is to propose a new control law for deployment and retrieval of a tethered satellite system in order to increase the orbital energy without using propellant. The system is considered to be a non-rotating momentum exchange tether that does not release any of the end masses. Also, it is assumed that the system does not conserve total angular momentum and the cycle of retrieving and deploying is done under the equilibrium assumption maintaining a synchronous configuration around the Earth. Therefore, the net tangent force due the different orbital altitude of the masses ...