Feedback control for spacecraft reorientation under attitude constraints via convex potentials


A completely unique steering algorithm is proposed for the perspective reorientation of a rigid body spacecraft within the presence of multiple types of attitude-constrained zones. During this direction, 2 varieties of angle-constrained zones are initial developed using unit quaternions, particularly, the angle-forbidden and -necessary zones. The paper then utilizes a convex parameterization of forbidden and mandatory zones for constructing a strictly convex logarithmic barrier potential that is subsequently used for the synthesis of feedback perspective management laws whereas the inevitable unwinding phenomenon is given a easy and effective remedy. Model-independent and model-dependent management laws are then implemented by using the Lyapunov direct technique and also the modified integrator backstepping method. The paper concludes with a set of simulation results to evaluate the effectiveness and demonstrate the viability of the proposed methodology.

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