Patent ID: 6424913
Filing Date: 2002-07-23
Classification: G01S

Abstract:
A GPS navigational system for a satellite having an on-board computer for controlling operation of the satellite, the system comprising a front end section having an input for receiving GPS signals from a plurality of GPS satellites, a digital preprocessor device connected to said front end section for digital reprocessing of the GPS signals received from the front end section, a signal processor connected to said digital preprocessor device for decoding the GPS signals to determine a position of the satellite, a first data bus line connecting said digital preprocessing device and said signal processor for bi-directional data exchange therebetween, and a second data bus line connecting said signal processor and said on-board computer for bi-directional data exchange therebetween such that at least a portion of the operation of determining the position of the satellite by the GPS navigational system is carried out by the on-board computer and data in a data bank in said on-board computer related to satellite propulsion is directed from the on-board computer to said signal processor.