IMPROVEMENT OF RANGE OF COHERENT LASER RADAR 3-D IMAGING SYSTEM

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$484,000.00
Award Year:
1989
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Agency Tracking Number:
6691
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Digital Signal Corp.
8003 Forbes Pl, Springfield, VA, 22151
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Frank Goodwin
() -
Business Contact:
() -
Research Institution:
n/a
Abstract
A NEED EXISTS FOR HIGH SPEED, PRECISE, AND LONG-RANGE IMAGING SENSORS FOR APPLICATIONS TO ROBOTICS, TELEROBOTICS, ASSEMBLY, AND ALIGNMENT OF LARGE SPACE STRUCTURES. PRECISION 3-D RANGE IMAGING WITH UNAMBIGUOUS RANGE DETERMINATION HAS BEEN DEMONSTRATED WITH A SCANNING FMCW COHERENT LASER RADAR (CLR) USING FREQUENCY MODULATED LASER DIODES AND HETERODYNE DETECTION. HOWEVER, THE MAXIMUM RANGE OF THE CLR IS CURRENTLY LIMITED BY THE COHERENCE LENGTH OF THE LASER DIODE TO LESS THAN FIVE METERS. IT IS THE INTENT OF THE PROPOSED PHASE I EFFORT TO IMPLEMENT AND DEMONSTRATE AN IMPROVED MAXIMUM RANGE OF 100 METERS OR MORE.THE IMPROVEMENT IS POSSIBLE BY NARROWING THE LINEWIDTH OF THE LASER SOURCE WITH ELECTRONIC FEEDBACK, THEREBY INCREASING THE COHERENCE LENGTH. THE LINE-NARROWING TECHNIQUE HAS BEEN DEMONSTRATED IN THE LABORATORY BUT HAS NOT BEEN CONFIRMED WITH A CLR MEASUREMENT. SUCCESSFUL COMPLETION OF PHASE I WILL STIMULATE INTEREST IN LONGER RANGE APPLICATIONS TO MACHINE VISION, AUTOMATION, AND TELEROBOTICS. AN IDEAL PHASE II FOLLOW-ON WILL BE TO SELECT A SIGNIFICANT LONG-RANGE APPLICATION AND TO DEVELOP A PROTOTYPE CLR TO MEET ITS REQUIREMENTS.

* information listed above is at the time of submission.

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