Extended kalman filter for autonomous satellite navigation system
First Claim
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1. A method for orbital platform navigation, including the steps of:
- sensing the data transmitted by a plurality of global positioning system satellites;
determining from said sensed transmitted data through the application of a software implemented Kalman filter, data defining current time and position and velocity of said orbital platform; and
initiating and controlling the operation of systems on-board said orbital platform based on said data defining current time and position and velocity.
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Abstract
An autonomous navigation system for an orbital platform incorporating a global positioning system based navigation device optimized for low-Earth orbit and medium-Earth orbit applications including a 12 channel, GPS tracking application-specific integrated circuit (15) operating in concert with a computer system (90) implementing an extended Kalman filter and orbit propagator which autonomously generates estimates of position, velocity and time to enable planning, prediction and execution of event-based commanding of mission operations.
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15 Claims
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1. A method for orbital platform navigation, including the steps of:
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sensing the data transmitted by a plurality of global positioning system satellites;
determining from said sensed transmitted data through the application of a software implemented Kalman filter, data defining current time and position and velocity of said orbital platform; and
initiating and controlling the operation of systems on-board said orbital platform based on said data defining current time and position and velocity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification