The operational capability in denied environment is one of the current important research directions for combat platforms such as unmanned aerial vehicles(UAVs).In environment characterized by high level of denial,integrated navigation systems based on satellite positioning and inertial navigation will not be able to function effec-tively.By utilizing the detection information provided by the payloads carried by the platform,the navigation sys-tems can maintain a certain level of operational capability.This paper proposes a method that can effectively im-prove the accuracy of velocity,attitude,and other critical parameters of the navigation systems in denied environ-ment by correcting the inertial navigation system based on the scene matching positioning information from the elec-tro-optical equipment and synthetic aperture radar(SAR).The effectiveness of the proposed method is verified through simulation test.
electro-optical equipmentSAR imagemulti-source information fusionscene matching
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