High speed ambiguity function evaluation by optical processing u

Details High speed ambiguity function evaluation by optical processing u High speed ambiguity function evaluation by optical processing u

1980-07-29

1983-06-21

Arnold, Bruce Y.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 9PS, 364822, G06G 900, G01S 1358

Patent

active

043890920

ABSTRACT:
A system for using optical data processing means to create the ambiguity function for two signals is disclosed. One-dimensional spatial light modulators are employed to code the signals into a beam of substantially coherent light. After the light has been coded with the first one-dimensional signal a Fourier Transform is performed by lens means. A linear phase shifter is placed in the Fourier Transform plane. This has the effect of creating a linear dependence along a second dimension when a second Fourier Transform is performed.

REFERENCES:
patent: 4108538 (1978-08-01), Felstead
patent: 4123142 (1978-10-01), Fleming et al.
patent: 4286328 (1981-08-01), Bocker
patent: 4310894 (1982-01-01), Lee et al.

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