Patent ID: 6414622
Filing Date: 2002-07-02
Classification: F41G,G01S

Abstract:
A method of protecting a pulse radar from a missile attempting to home on interrogating pulses emitted by such radar, said method comprising the steps of:providing a plurality of decoys at different locations in the vicinity of the pulse radar, each one of the decoys being adapted, when activated, to emit pulses of a given amplitude and duration; and activating, when each one of the interrogating pulses is generated in the pulse radar, a selected decoy to lead the remaining decoys in the plurality of decoys for a period of time controlled by the range and range rate measurements of a pulse Doppler missile warning sensor; and changing the decoy selected to lead the remaining decoys in the plurality of decoys at a time determined by the pulse Doppler missile warning sensor thereby defining a blink rate associated with said decoys, to form a covering pulse overlapping the then emitted one of the interrogating pulses; and adaptively changing said blink rate and determining an associated maneuver change of said missile in response thereto, to obtain the blink rate that provides the maximum maneuver change associated with said missile.