Patent ID: 6456906
Filing Date: 2002-09-24
Classification: G05D

Abstract:
A method of a satellite positioning system (SATPS)-based guidance of a non-thrusted flight vehicle; said method comprising the steps of:(a) estimating a state or a navigation solution of said non-thrusted flight vehicle by solving a set of non-linear equations of said non-thrusted flight vehicle by using a set of Extended Kalman Filter algorithms; (b) updating said state of said non-thrusted flight vehicle by making real time attitude measurements of the coordinates of said non-thrusted flight vehicle by using a SATPS â€˜vectorâ€™ navigational receiver; (c) estimating and updating parameters of predicted trajectory of said non-thrusted flight vehicle by using a Parameter Estimator; and (d) generating a guidance and control signal configured to perform a real time navigation of said non-thrusted flight vehicle by using an External Guidance and Control Module (EGCM).