Patent ID: 9069066
Filing Date: 2015-06-30
Classification: G01S

Abstract:
1. 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.