DOI 10.17586/0021-3454-2017-60-5-412-419
UDC 629.7.052
METHOD OF AIRCRAFT ROLL ANGLE MEASUREMENT BY HORIZONTALLY POLARIZED SIGNALS OF RADIO BEACON
Tomsk State University of Control Systems and Radioelectronics, Department of Radio-Engineering Systems; Associate Professor
A. A. Meshcheryakov
Tomsk State University of Control Systems and Radioelectronics, Department of Radio-Engineering Systems; Associate Professor
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Abstract. A method for measuring aircraft roll with the use of horizontally polarized signals of a radio beacon positioned in a point with known coordinates is considered. The beacon signals are received by an on-board antenna with a polarization modulator implemented in its UHF channel. The modulator is constructed as a rotating circular waveguide section with a half-wave phase plate. The roll angle is determined by the phase of the fourth harmonics of polarization modulation frequency at the output of the single-channel radio receiving device.
Keywords: radio-beacon system, horizontally polarized signals, Jones vector, polarization modulator, a half-wave phase plate, roll, aircraft
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