The report presents results of tests in 1969 aboard BUNKER HILL and at Border Field to establish the bearing accuracy of the phase comparison technique against known emitters at known locations. Plotted data enable the reader to view the results from particular test locations and receiver sites, and to study the azimuth, range, and accuracy obtained. Sources of error are analyzed. It is concluded that the phase comparison direction finder, ...
The Luneberg lens was investigated for use as an X-band antenna capable of providing high gain, narrow beamwidths, and low sidelobes that are comparatively better than those furnished by other microwave-ECM antennas. The multibeam capability of the lens was optimized and explored for direction-finding system application. A constant-K lens was also designed for comparative purposes and evaluated as part of the task. (Author)
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