The Method for Autonomous Determination of Longitude and Latitude of a Moving Object

The method for determination of the longitude and latitude of a moving object is presented. This method is based on measuring the vehicle’s angular rate using an inertial measuring unit that consists of, at least, three gyroscopes (precision angular rate sensors). The latitude determination does not require integration of accelerometer output signals, whereas the longitude determination requires only a single integration of the gyroscope output signals. The longitude and latitude measurement error models are developed.