FIELD: aviation instrumentation. SUBSTANCE: device incorporates unit of map of terrain relief, first comparator, converter of signals from transducers of non-inertial structure, unit of optimum Kalman filter. It was supplemented with unit of map of increment of acceleration of gravitational force, second comparator, differentiator, gravimeter, unit of multimodal comparison and unit of measurement vector. EFFECT: increased accuracy in solving of navigational problems. 3 dwg
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