Communications: directive radio wave systems and devices (e.g. – With particular circuit – Display
Patent
1988-12-23
1990-05-29
Tarcza, Thomas H.
Communications: directive radio wave systems and devices (e.g.,
With particular circuit
Display
342 54, 342189, 342180, 356 285, 250334, G01S 1389
Patent
active
049299514
ABSTRACT:
An image of a target (11) is produced by illumination of the target (11) with overlapping fields (18, 20) of wave energy, such as coherent light, producing an interference pattern (22) moving across the target. At least one pair (12) of sources (14, 16) wave energy provide the moving interference pattern (22). The scattered illumination reflected from the target is detected by a non-imaging receiver (24); a two dimensional spatial frequency map is recorded (30, 62), based upon the amplitude, frequency and phase of the illumination received; and a two dimensional image of the target is formed (32, 72) by applying a Fourier transform to the two dimensional frequency map.
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patent: 4011445 (1977-03-01), O'Meara
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patent: 4630051 (1986-12-01), Adams et al.
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patent: 4717916 (1988-01-01), Adams et al.
patent: 4802149 (1989-01-01), Moore
Denson-Low Wanda K.
Hughes Aircraft Company
Sotomayor John B.
Streeter William J.
Tarcza Thomas H.
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