Photonic radar decoy

Details Photonic radar decoy Photonic radar decoy

1997-03-17

1998-07-28

Sotomayor, John B.

Communications: directive radio wave systems and devices (e.g.,

Radar ew

342 9, 342169, 342170, 342171, 342172, 342187, 342 15, G01S 738, G01S 1376

Patent

active

057867860

ABSTRACT:
A photonic radar decoy (50) is provided which simulates an aircraft to a radar having an interrogating signal. A plurality of receiving antenna (52, 54, 56, 58, 60) are attached to the decoy (50) with each of the receiving antenna (52, 54, 56, 58, 60) independently capable of receiving the interrogating signal from the interrogating radar system. Each signal received by an antenna (52, 54, 56, 58, 60) is transmitted to a signal combiner and amplifier (82) by delay lines (72, 74, 76, 78, 80). The combiner and amplifier (82) coherently adds the transmitted signals, thereby producing a coherent signal which is amplified and subsequently emitted by a non-directional transmission antenna 106, simulating a dynamic and complex radar signature of an aircraft.

REFERENCES:
patent: Re35553 (1997-07-01), Li
patent: 3623107 (1971-11-01), Holdren, III
patent: 4347513 (1982-08-01), Schindler
patent: 4419669 (1983-12-01), Slager et al.
patent: 4471358 (1984-09-01), Glasser
patent: 4969819 (1990-11-01), James
patent: 5136295 (1992-08-01), Bull et al.
patent: 5260820 (1993-11-01), Bull et al.
patent: 5294930 (1994-03-01), Li

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