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1 



REPORT DOCUMENTATION PAGE 



READ INSTRUCTIONS 

 BEFORE COMPLETING FORM 



1. REPORT NUMBER 



NOSC Technical Report 652 (TR 652) 



2. GOVT ACCESSION NO. 



3. RECIPIENT'S CATALOG NUMBER 



4. TITLE (and Sublllle) 



FIBER-OPTIC COMMUNICATION LINKS FOR UNMANNED 

 INSPECTION SUBMERSIBLES 



5. TYPE OF REPORT 4 PERIOD COVERED 



6. PERFORMING ORG. REPORT NUMBER 



7. AUTHORfs; 



S.J. Cowan 

 P.J. Heckman 

 Michael Kono 



8. CONTRACT OR GRANT NUMBERCsJ 



9. PERFORMING ORGANIZATION NAME AND ADDRESS 



Naval Ocean Systems Center 

 San Diego, CA 921152 



FGOV,521-MS31 



11. CONTROLLING OFFICE NAME AND ADDRESS 



U.S. Geological Survey 

 620 National Center 

 Reston,VA 22092 



12. REPORT DATE 



15 October 1980 



13. NUMBER OF PAGES 

 56 



U. MONITORING AGENCY NAME & ADDRESS^' d/'/orsnt /rom Controlling Olllce) 



15. SECURITY CLASS, (ol this report) 



Unclassified 



16. DISTRIBUTION STATEMENT (ol this Report) 



Approved for public release; distribution unlimited 



17. DISTRIBUTION STATEMENT (ol the abstract entered In Block 20, II dlllerent Irom Report) 



18. SUPPLEMENTARY NOTES 



19. KEY WORDS (Continue i 



Fiber optics 



Urunarmed submersibles 

 EAVE WEST 

 Communications 



verse aide It i 



sary and Identify by block number) 



Underwater inspection 

 Offshore rigs 

 Underwater pipeUnes 



20. ABSTRACT (Continue on reverse side II necessary and Identity by block number) 



Periodic inspection of undersea pipeUnes and offshore structures requires depth capabilities in excess of those 

 which are economical with divers (ie, 100 meters). Free-swimming, unmanned undersea vehicles operating in the 

 supervisory-controlled mode (ie, man-in-the-loop) are being considered as a possible solution to the deep, undersea 

 inspection problem. Specifically, an expendable optical fiber data Unk is proposed as a means to provide the wide- 

 bandwidth, high-quality, bidirectional communications essential to advanced-sensor/real-time man-in-the-loop 

 capabihties of such inspection vehicles. 



DD 1 JAN 73 1473 EDITION OF 1 NOV 65 IS OBSOLETE 



S/N 0102- LP- 014- 6601 



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