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US 9,069,066 B2Granted
Radar deception jamming prevention using bi-static and mono-static radars
OwnerFaran Awais Butt, Ijaz Haider Naqvi +1inventors
InventorsFaran Awais Butt, Ijaz Haider Naqvi, Ali Imran Najam
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Abstract
A method of preventing the jamming of radars is provided utilizing two radars located at a distance to prevent both velocity and range pull off.
Claims2
A method for preventing deception jamming of radars by a target comprising:
- providing a mono-static radar equipped with a transmitter and a receiver;
- providing a bi-static radar transmitter co-located with the mono-static radar;
- providing a bi-static radar receiver located at a known distance away from the bi-static transmitter such that the bi-static receiver, the bi-static transmitter and a target are in a triangular configuration;
- allowing the mono-static radar, the bi-static receiver and the bi-static transmitter to be synchronized with each other;
- allowing the mono-static and bi-static radar to operate on a different frequency;
- determining the Doppler frequency by the mono-static receiver and bi-static receiver and ascertaining jamming if the Doppler frequency recorded is found the same by both the mono-static and the bi-static receivers;
- calculating the distance between the mono-static radar and the object prior to jamming;
- changing the frequency of bi-static transmitter when the Doppler frequency read by the mono-static and bi-static radar are the same to continually monitor the velocity and the position of the target.
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Dependencies are inferred from the claim text.