Effective Utilization of Geostationary Orbit Through Optimization

The limitation in the effective use of the geostationary orbit is the intersatellite interference problem. A theoretical approach to realize an optimal usage of the orbit is provided in this paper, with particular attention to the constraints of service arcs, existence of spotbeam operating systems and different frequency plannings. The problem is formulated as a nonlinear programming problem and the sequential unconstrained minimization technique is applied to solve it numerically. Example computations are also given and various interference criteria are evaluated in terms of orbit utilization.