Patent ID: 8843251
Filing Date: 2014-09-23
Classification: G01S

Abstract:
1. A method comprising: receiving, in a mobile terminal, first information for defining a first algebraic function that relates a time variable to a first mapped variable; using, in the mobile terminal, the function to convert a time variable value to a first value of the first mapped variable; converting, in the mobile terminal, the first value of the first mapped variable to a second value of a second mapped variable; and positioning, in the mobile terminal, a satellite by converting the second value of the second mapped variable value to a position value that positions a satellite; wherein a second algebraic function that relates the first mapped variable to the second mapped variable is used to convert the first value of the first mapped variable to a second value of a second mapped variable, the second algebraic function is an algebraic solution to a differential equation of motion of the satellite, and the first and second algebraic functions are expressed using complex exponential functions.