Abstract: Navigation systems provide accurate position, velocity and attitude information at one or more slave inertial measurement units (SIMU), mounted and spaced apart from a master inertial navigation system (MINS).

Abstract: An exemplary navigation system uses a master navigation component at a first location with a first sensor in a vehicle and a slave navigation component with a second sensor at a second location that is a variable displacement to the first location due to physical deformation of the vehicle. Static and dynamic location components provide static and dynamic information of the displacement between the first and second locations. A flexural model based on the deformation characteristics calculates the dynamic displacement. An error estimator estimates errors in the navigation measurement data of the slave navigation component based on the displacement information.

Abstract: An exemplary navigation system uses a master navigation component at a first location in a vehicle and a slave navigation component at a second location that is a variable displacement to the first location due to physical deformation of the vehicle. Static and dynamic location components provide static and dynamic information of the displacement between the first and second locations. An error estimator estimates errors in the navigational measurement data generated by the slave navigation component based on the navigational measurement data generated by the master navigation component and the displacement information provided by the static and dynamic location components. The master navigation component corrects the navigation measurement data of the slave navigation component based on the determined error and translates the corrected navigation measurement data of the slave navigation component into navigational measurement data in its coordinate system.

Abstract: Embodiments of the system provide for processing non-continuous atom interferometer inertial instrument measurements and continuous wide bandwidth instrument measurements with a gravity database. An embodiment may have: a gravity disturbance vector database having gradients; a comparator that compares real-time gravity gradiometer gradient measurements with gradients from the database to provide an observation; and a Kalman filter that receives the observation on an input thereof, the Kalman filter outputting a modeled error state vector; wherein the gravity disturbance vector from the gravity database is used to remove a known portion of an actual gravity disturbance vector from specific force measurements of high bandwidth conventional inertial accelerometers to thereby form navigation data.