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US 3,943,512 AGranted
Sidelobe lock-on discriminating method for search-track monopulse radar
AssigneeRCA Corporation
InventorDonald Joseph Dempsey
Life of this patent
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Abstract
Method using the difference in the value of the angle-error gradient exhibited by the mainlobe and any sidelobe antenna pattern of a monopulse radar to discriminate between mainlobe lock-on and sidelobe lock-on of a detected target.
Claims4
An operating method for a search-track monopulse radar having a mainlobe antenna pattern exhibiting a first angle-error gradient and a sidelobe antenna pattern exhibiting a second angle-error gradient different from said first angle-error gradient, at least one of said first and second angle-error gradients being known;
- said method comprising the steps of:
- a. operating said radar in a search mode until said radar locks onto a detected target, and then
- b. measuring the actual angle-error gradient of said locked-on target to indicate whether said target is locked on to said mainlobe or is locked on to said sidelobe.
Dependencies are inferred from the claim text.