Orbit Representation The transformation of r and r into the equatorial system x o is performed by a rotation matrix X satellite perigee R 3D rotation R. e3=0 LOT orbit &e Principles of the Global Positioning System 2005-3-11(15 Orbit Representation R=R3{-91{-i}R3{-m}=[eg2e3] In order to rotate the system x into the terrestrial system X, an additional rotation through the angle Oo, the transformation matrix, therefore, becomes quired The R=R3O。}3{-2R1{-i}R3{ Orbital Plane Space-fixed Sys. ->Terrestrial Sys. 電 Principles of the Global Positioning System 2005-3-11(168 Principles of the Global Positioning System 2005-3-11 15 Orbit Representation Principles of the Global Positioning System 2005-3-11 16 Orbit Representation