Simultaneous determination of incoming microwave frequency and a

Details Simultaneous determination of incoming microwave frequency and a Simultaneous determination of incoming microwave frequency and a

1994-05-04

1995-04-04

Hellner, Mark

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

Radar ew

342424, G01S 502

Patent

active

054041449

ABSTRACT:
Incoming signals radiated to an array of antennas are processed within a nal surveillance system by adding signal outputs of two antennas at a common frequency. Separation of the added signal outputs according to frequency and comparison of power level measurement thereof provides signal phase difference data from which frequency and direction of the incoming signals are simultaneously determined.

REFERENCES:
patent: 4634230 (1987-01-01), Spezio
patent: 4649392 (1987-03-01), Apostolos
patent: 4801941 (1989-01-01), Sabet-Peymar
patent: 4802149 (1989-01-01), Moore
patent: 4909627 (1990-03-01), Brousseau
patent: 5327142 (1994-07-01), Tsui et al.

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