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AssigneeThe United States of America as represented by the Secretary of the Navy
InventorDavid B. Hoisington
Estimating the term…
A technique and apparatus are disclosed which greatly reduce error in sping antenna direction finding systems due to amplitude modulation of the source. A second omnidirectional antenna and its associated receiver are used in two alternative methods to reduce error. Embodiment one uses the second receiver, having automatic gain control, to control the gain of the first receiver, having input from the spinning antenna and outputting a signal for display. Embodiment two uses two log receivers, one receiving signals from the omnidirectional antenna and the other receiving signals from the spinning antenna. The outputs of the two log receivers are then combined and inputted to an amplifier which may have an inverse log characteristic and the amplifier signal outputted to a display.
A system for providing directional information about a radiant energy source comprising:
A system for determining the angular position of a radiant energy source comprising:
Dependencies are inferred from the claim text.