A SPREAD SPECTRUM DEEP WATER PINGER SYSTEM

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$58,646.00
Award Year:
1990
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
13480
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
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Steven M Shope
(505) 897-4100
Business Contact:
() -
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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