METHOD FOR MEASURING TRANSMISSION FREQUENCIES USING A ROTARY INTERFEROMETER

摘要

The invention relates to a method for measuring the carrier frequency of the radio-electric signal transmitted by a remote transmitter using an antenna comprising at least two wideband sub-antennas which are located in a same plane and the phase centers of which are separated by a distance d. The sub-antennas are combined so as to form an interferometry base. The radio-electric signals received by the two sub-antennas are jointly processed so as to form a video signal characterizing the phase difference that exists between the radio-electric signals received by said sub-antennas. The method comprises measuring the frequency of the video signal, and deducing the carrier frequency of the radio-electric signal transmitted by the transmitter therefrom. The measurement of the carrier frequency of the radio-electric signal transmitted by the transmitter is equal, plus or minus one scale factor, to the measurement of the frequency of the formed video signal.