A radio interferometer capable of azimuth-elevation direction finding for geosynchronous satellites has been developed. The interferometer has two small-diameter antennas and four movable planar mirrors. The movable mirrors reflect the microwaves from the satellite and guide them to the fixed receiving antennas. Two of the movable mirrors are mounted on a rotary arm, so that the baseline of the interferometer can rotate in the horizontal plane. This configuration enables the interferometer to eliminate phase-ambiguity problems and cable-phase errors, resulting in a direction finding accuracy of better than 0.01 deg in the Ku band.
Radio interferometer for geosynchronous-satellite direction finding
IEEE Transactions on Aerospace and Electronic Systems ; 43 , 2 ; 443-449
2007
7 Seiten, 15 Quellen
Article (Journal)
English
Radio Interferometer for Geosynchronous-Satellite Direction Finding
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