Patent ID: 9568320
Date: 2017-02-14
CPC Classifications: G01C,G01M

Claim:
1. A method for determining navigation parameters of a vehicle, the method comprising: receiving measurements from accelerometers; calculating, using processing circuitry, differential accelerometers measurements as a function of the measurements from the accelerometers; calculating, using the processing circuitry, an angular acceleration as a function of the differential accelerometers measurements under varying center of gravity position and unknown varying gravitational force with anomaly; calculating, using the processing circuitry, the square of the magnitude of an angular velocity as a function of the differential accelerometers measurements; and calculating, using the processing circuitry, the navigation parameters by determining the angular velocity using a Kalman filter as a function of the angular acceleration and the square of the magnitude of the angular velocity, wherein the calculation of the navigation parameters is fully operated in a passive navigation system.