Laser radar

Details Laser radar Laser radar

1989-02-22

1998-02-03

Hellner, Mark

Optics: measuring and testing

Range or remote distance finding

With photodetection

356 511, G01C 0308

Patent

active

057150443

ABSTRACT:
The inventive laser radar uses a multiple frequency processing technique for the purpose of extracting relative range information from a received signal by transmitting and receiving two frequencies that are derived from a reference signal source modulated by two modulators that are driven by a different frequency, the reference frequency source also serving as a local oscillator.

REFERENCES:
patent: 3082418 (1963-03-01), Milosevic
patent: 3437820 (1969-04-01), Thompson, Jr. et al.
patent: 3522992 (1970-08-01), Jaffe
patent: 3542472 (1970-11-01), Smith-Vaniz
patent: 3625619 (1971-12-01), Scholdstrom
patent: 3750172 (1973-07-01), Tresselt
patent: 3778159 (1973-12-01), Hines et al.
patent: 4005936 (1977-02-01), Redman et al.
patent: 4163954 (1979-08-01), Hayes
patent: 4190361 (1980-02-01), Dubrunfaut
patent: 4537502 (1985-08-01), Miller et al.

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