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ADVANCED UNDERSEA TACTICAL COMMUNICATIONS TECHNIQUES

Award Information

Agency:
Department of Defense 		Branch:
Defense Advanced Research Projects Agency 		Award ID:
272 		Program Year/Program:
1984 / SBIR
Agency Tracking Number:
272 		Solicitation Year:
N/A 		Solicitation Topic Code:
N/A 		Solicitation Number:
N/A
Small Business Information
Defense Systems Inc.
5121 Westbranch Dr Mclean, VA 22102
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1984
Title: ADVANCED UNDERSEA TACTICAL COMMUNICATIONS TECHNIQUES
Agency / Branch: DOD / DARPA
Contract: N/A
Award Amount: $226,196.00
 

Abstract:

THERE IS AN INCREASING NEED FOR LONG RANGE (200KM) APPROXIMATELY 10 BPS RATE ACOUSTIC COMMUNICATION AT LOW BIT ERROR RATES IN THE COMMAND AND CONTROL OF ACOUSTIC SURVEILLANCE SYSTEM ELEMENTS, UNDERWATER VEHICLES AND SENSORS. SIMULATED FISH NOISE, CODED TONE AND MULTITONE CW SIGNALS HAVE BEEN USED WITH VARYING SUCCESS. ONLY THE M-ARY, MULTITONE, LONG BAND LOW FREQUENCY WAVEFORMS ARE PRACTICAL FOR LONG RANGE COMMUNICATIONS. HOWEVER, THE DEPENDENCE OF AMBIENT NOISE VS FREQUENCY, PROPAGATION LOSS VS RANGE, TRANSDUCER EFFICIENCY AND SIZE VS FREQUENCY AND TOTAL BANDWIDTH OCCUPIED MUST BE CONSIDERED IN THE ACOUSTIC LINK DESIGN. PHASE 1 OF THIS RESEARCH WILL PERFORM AND DOCUMENT THE TRADEOFFS THAT LEAD TO PRACTICAL COMMUNICATIONSSYSTEMS DESIGNS AND WILL PRODUCE A HANDBOOK OF MONOGRAPHS THAT WILL PERMIT THE USER TO SELECT THE SYSTEM VARIABLES THAT BEST SUIT THE APPLICATION AT HAND. THE RESULTS OF THISANALYSIS ARE THEN GOING TO BE APPLIED TO THE COMMAND AND CONTROL OF DISTRIBUTED SENSORS IN HOSTILE AREAS. PHASE 1 EFFORT WOULD PROVIDE THE FIRST DOCUMENTED ANALYSIS OF TRANSMITTER, POWER, AND VOLUME REQUIREMENTS NEEDED FOR LONG LIFE REMOTE SENSORS. PHASE 2 WILL FABRICATE A PROTOTYPE TO BE DEMONSTRATED AT SEA.

Principal Investigator:

Business Contact:

George s. sebestyen
7038831000
Small Business Information at Submission:

Defense Systems Inc.
1521 West Branch Dr Mclean, VA 22102

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No