Northrop Grumman Litef Gmbh

Uwe Herberth

Matthias Deck

Uwe Probst

Tim Martin

The invention relates to a navigation device comprising a turntable which can be rotated about an axis in at least two different rotary positions, in accordance with a rotary control signal. An inertial measuring unit is arranged on the rotary table which can be rotated with the rotary table. The quality of the measurement data can be determined by the initial measuring unit with the help of an evaluation device. When the determined quality does not reach a predetermined minimum quality, the rotary table rotates in the respective other rotary position.

Navigation device with turntable for index measuring and method for operating the navigation device

Method for determining states of a system by means of an estimation filter, in which first state values are determined by calculating a mean value of a probability distribution for the states, in which a probability for deviation for the case that the first state values deviate from the actual states of the system is calculated, and in which the states of the system are measured as state data. In the method the first state values are corrected by means of the state data then, if the probability for deviation is larger than a threshold.

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Munich, Georgia

Uwe Herberth