Abstract:Abstract:In this paper the solution of an artificial satellite motion under the influence of the Earth's gravitational field with axial symmetry of any conic section with zonal harmonics J 2 in terms of Euler parameters is established. Applications of this method enable anyone to predict the motion of artificial satellites.
“…where, , at origin, , at origin, and . The matrix A is given by (11) and . The controllability matrix Q is given by , and the rank of Q is 4, which is not equal to the dimensions of the state X (= 6).…”
Section: Adding the Thruster U1(t) Only In Z Directionmentioning
confidence: 99%
“…al. [11] regularized equations of perturbed motion due to oblateness of Earth using KS transformations and derived algorithm to solve these equations using Picard's method. Chen and Jing [12] studied relative motion of satellite under the effect of the oblateness of earth and atmospheric drag.…”
In this article we have studied the controllability of artificial satellite under the effect of zonal harmonic J2 in cylindrical polar coordinates systems. Seven different cases of thrusters in various directions have been analyzed and it is found that the system is controllable if we apply thrusters in either r, θ and z or θ and z direction. The equations governing motion of satellite have been linearized and Kalman controllability test is applied to check the controllability of the system. We have also derived controller u for the linearized system. The trajectory of the system has been plotted to show the controllability of the system.
“…where, , at origin, , at origin, and . The matrix A is given by (11) and . The controllability matrix Q is given by , and the rank of Q is 4, which is not equal to the dimensions of the state X (= 6).…”
Section: Adding the Thruster U1(t) Only In Z Directionmentioning
confidence: 99%
“…al. [11] regularized equations of perturbed motion due to oblateness of Earth using KS transformations and derived algorithm to solve these equations using Picard's method. Chen and Jing [12] studied relative motion of satellite under the effect of the oblateness of earth and atmospheric drag.…”
In this article we have studied the controllability of artificial satellite under the effect of zonal harmonic J2 in cylindrical polar coordinates systems. Seven different cases of thrusters in various directions have been analyzed and it is found that the system is controllable if we apply thrusters in either r, θ and z or θ and z direction. The equations governing motion of satellite have been linearized and Kalman controllability test is applied to check the controllability of the system. We have also derived controller u for the linearized system. The trajectory of the system has been plotted to show the controllability of the system.
“…A big advantage over the formulation of the state in LVLH frame is the handy consideration of the J2 gravity perturbation which becomes very complicated otherwise (see Hayman (2012)). J2 is the impact of the earth's oblateness effect which leads to a change of the orbit depending on the inclination.…”
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