Experimental Studies of Spectral Portraits of Propeller-driven Fixed-wing and Turbojet Aircraft in a Surveillance Radar with a Continuous Probing signal

摘要

The results of experimental studies of spectral portraits of propeller-driven fixed-wing and turbojet aircraft are examined. The spectral portraits characterize "secondary" modulation of a signal reflected from rotating elements of the air- craft construction (blades of propellers of propeller-driven fixed- wing aircraft, blades of the compressor and the engine turbine of turbojet aircraft). Spectral portraits can be used for the recognition of aerodynamic object class (type).