A SPREAD SPECTRUM DEEP WATER PINGER SYSTEM

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N/A
Agency Tracking Number: 13480
Amount: $58,646.00
Phase: Phase I
Program: SBIR
Awards Year: 1990
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Sandia Research Assocs Inc
Po Box 2545, Corrales, NM, 87048
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Steven M Shope
 (505) 897-4100
Business Contact
Phone: () -
Research Institution
N/A
Abstract
HIGH-VALUE TEST ITEMS ARE OFTEN LOST IN OPEN-OCEAN TEST AND PRACTICE RANGES. SUCH ITEMS INCLUDE WEAPONS, FLIGHT DATA RECORDERS, MISSILES, DRONES, AND MANNED TACTICAL AIRCRAFT. THE LOSS OF VALUABLE TEST DATA CAN BE A SERIOUS PROBLEM. IN ADDITION, RECOVERY OF SOME ITEMS BY FOREIGN GOVERNMENTS NOT ONLY COMPROMISES WEAPON TECHNOLOGY, BUT CAN RENDER AN ENTIRE WEAPON SYSTEM SUSCEPTIABLE TO FOREIGN COUNTERMEASURES. THIS PROPOSAL DESCRIBES A PHASE I SBIR PROJECT THAT WILL DEMONSTRATE THE FEASIBILITY OF AN ADVANCED UNDERWATER LOCATION DEVICE THAT USES SPREAD SPECTRUM SIGNAL CODING. CONVENTIONAL UNDERWATER LOCATION DEVICES, OR PINGERS, EMIT A PERIODIC ACOUSTIC PULSE WHICH IS DETECTABLE BY ANYONE WITH A ULD RECEIVER. WE PROPOSE TO REPLACE THE ACOUSTIC PULSE WITH A PSEUDO-NOISE, SPREAD SPECTRUM SIGNAL. DETECTING THIS SIGNAL REQUIRES AN EXACT REPLICA OF THE TRANSMITTED CODE. TO AN UNAUTHORIZED OBSERVER WITHOUT THE REPLICA, THE BEACON'S SIGNAL IS INDISTINGUISHABLE FROM BACKGROUND OCEAN NOISE.

* information listed above is at the time of submission.

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