Laser radar utilizing pulse-tone waveform

Patent · Tue Sep 01 00:00:00 EDT 1987

OSTI ID:5914853

Edwards, B E; Biron, D G

Laser radar is described comprising: (1) A CW laser; (2) A pulsed laser; (3) Means for deriving a local oscillator beam from the CW laser; (4) Acousto-optic angular multiplexer means for passing the output of the pulse laser when the multiplexer is in the off state and for passing and frequency shifting the output of the CW laser when the multiplexer is in the on state to generate a pulse-tone waveform; (5) Optical means for launching the pulse-tone waveform toward a target and for receiving a return waveform; (6) A detector; and (7) Means for simultaneously directing the return waveform and the local oscillator beam onto the detector to generate a beat signal including both target range and velocity information.

• Assignee: Massachusetts Institute of Technology, Cambridge, MA
• Patent Number(s): US 4690551
• OSTI ID: 5914853
• Resource Relation: Patent File Date: Filed date 19 Apr 1985
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
LASERS
DESIGN
OPERATION
WAVE FORMS
RADAR
MULTIPLEXERS
OPTICAL SYSTEMS
OSCILLATORS
PULSES
ELECTRONIC EQUIPMENT
EQUIPMENT
MEASURING INSTRUMENTS
RANGE FINDERS
420300* - Engineering- Lasers- (-1989)