The gyrometer has four moving assemblies, each coupled to two moving assemblies located at neighboring vertices via a coupling structure. A detection mass (30) is connected to an anchoring zone (36) by two arms (44, 46) lying along the extension of one wit...

The vibrating gyrometer structure is manufactured on a thin plate by micro manufacture. The gyrometer has two mobile symmetric assemblies (30,10,50) coupled by a coupling structure (20) allowing mechanical energy transfer. There are three moving sections a...

The gyrometer has displacement engines (16, 17) exciting two orthogonal oscillation modes of a micro electro mechanical system (10) to cause alternately right or left circular movements of a suspended mass (11) of the system. A phase shift measuring circui...

The device has a global positioning system (GPS) receiver (20) to receive signals and navigation messages from satellites. A memory unit (30) memorizes a measure of altitude of an aircraft. A calibration device (40) estimates variation of the altitude and ...

The image processing method provides a representative three dimensional terrain map (T). the terrain has a potential threat. An active intervisibility zone (Z) is defined. The zone is made up of the surface sheet of the intervisibility zone to the ground a...

The invention relates to the field of optical equipment designed to be airborne. It is optical equipment designed to be airborne comprising an optical sub-assembly (80) protected by a movable tracking hood (50) and by a window (H) integral with the trackin...