Modified Two-Dimensional Coverage Analysis Method Considering Various Perturbations

This article proposes a modified 2-D coverage method for satellite coverage analysis considering various perturbations. First, the basic mathematical model, including the standard 2-D field-mapping method and frequently used perturbation model, is introduced. Then, based on the osculating orbital elements, a modified 2-D field-mapping method is presented for calculating visible intervals between a satellite and a target accurately and efficiently. Furthermore, based on the analytical partial differential of the field-element equations with respect to the orbital elements, the maximum error of the proposed method is calculated to estimate its accuracy. The simulation results demonstrate that the proposed method is accurate and effective, indicating its wide application prospect in coverage analysis involving various perturbations.