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US 4,065,771 AGranted
Random scanning receiver
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsJoseph F. Gulick, Donald R. Marlow
Life of this patent
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Abstract
The present invention relates to an array antenna radar receiver for tracg a signal source wherein selected phase-delay patterns of array elements are randomly selected to produce a random scan which is effectively interference free.
Claims6
An array antenna receiver for tracking a signal source, comprised of:
- means for detecting and amplifying the sum of signals received by all elements of the array, where each sum of signals corresponds to a pattern of array elements randomly selected to be phase-delayed with respect to the other elements,
- means, having the detected and amplified sum of signals as an input, for generating an azimuth error signal and an elevation error signal, and
- automatic gain control (AGC) feedback means, connected from the azimuth and the elevation error signals generating means output to provide an input to the amplifier-detector means, for controlling the level of signal produced by the amplifier-detector means by eliminating unwanted input signal variations.
Dependencies are inferred from the claim text.