METHOD OF DETERMINATION OF FLIGHT ALTITUDE OF FLYING VEHICLE IN SYSTEMS OF SECONDARY RADIOLOCATION AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 1995 - IPC

FIELD: navigation. SUBSTANCE: values of atmospheric pressure are measured at flight altitude of flying vehicle and at sea level, temperature at sea level 15 measured and temperature gradient of change of air temperature is taken, current values of air temperature at airfield and airfield altitude above sea level are determined and flight altitude of flying vehicle is calculated. EFFECT: improved authenticity of determination of flight altitudes. 2 cl, 1 dwg, 1 tbl