Pulsed laser radar apparatus

Optics: measuring and testing – Range or remote distance finding – With photodetection

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Details

356 285, G01C 308, G01P 336

Patent

active

044471491

ABSTRACT:
A pulsed laser radar apparatus utilizing a Q-switched laser unit to generate laser pulse signals including a low intensity trailing tail. The trailing tail is utilized to provide a local oscillator signal that is combined with the target return signal prior to detection in a heterodyned detector unit.

REFERENCES:
patent: 3511569 (1970-05-01), Mackta
patent: 3856402 (1974-12-01), Low et al.
patent: 4298280 (1981-11-01), Harney

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