False track discrimination in the sidelobe region of a monopulse antenna

The radar target discrimination method involves utilising the beam width difference between the main beam monopulse and sidelobe monopulse to distinguish the main beam monopulse tracks from sidelobe monopulse tracks. After the first monopulse beam (52, 54), the monopulse beam is moved (58) to two ad...

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Bibliographic Details
Main Author LIU, SIENANG C
Format Patent
LanguageEnglish
French
German
Published 24.10.2001
Edition7
Subjects
ANALOGOUS ARRANGEMENTS USING OTHER WAVES
DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES
LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES
MEASURING
PHYSICS
RADIO DIRECTION-FINDING
RADIO NAVIGATION
TESTING
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Summary:The radar target discrimination method involves utilising the beam width difference between the main beam monopulse and sidelobe monopulse to distinguish the main beam monopulse tracks from sidelobe monopulse tracks. After the first monopulse beam (52, 54), the monopulse beam is moved (58) to two additional beam pointing angles such that the target will stay on the same side of the true main beam monopulse slope but will fall on the opposite side of the sidelobe monopulse slope. The sign and magnitude of the difference/sum (~D/epsilon) measurements (60, 62, 64) can be used to distinguish a valid main beam track from a false sidelobe track. False tracks are detected if the signs of the difference/sum measurements are not identical, or if the magnitudes of the measurements do not monotonically increase or decrease.
Bibliography:Application Number: EP19940309116