Ultra Wide Band Time Difference Of Arrival Sensor

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$300,000.00
Award Year:
2006
Program:
STTR
Phase:
Phase II
Contract:
N00014-06-C-0044
Award Id:
70434
Agency Tracking Number:
N045-019-0124
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
15400 Calhoun Drive, Suite 400, Rockville, MD, 20855
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
161911532
Principal Investigator:
Eric van Doorn
Director of Sensor Technology
(301) 294-5229
evandoorn@i-a-i.com
Business Contact:
Mark James
Contracts and Proposals Manager
(301) 294-5221
mjames@i-a-i.com
Research Institute:
UNIV. OF CENTRAL FLORIDA
Guy Schiavone
3280 Progress Drive
Department of Engineering
Orlando, FL, 32826
(407) 882-1300
Nonprofit college or university
Abstract
We propose to develop an unattended system which records portions of the VHF and UHF spectrum, determine positions of the responsible transmitters, and report raw IF waveforms and transmitter locations to a user by means of a LPI/LPD data link. We will use ultra wideband (UWB) transceivers (radios) to wirelessly synchronize multiple RF receivers. UWB spreads its energy over several Giga Hertz so it is highly LPI/LPD. This method does not rely on GPS so the synchronization will be maintained when the GPS signal is not available. A time resolution better than 1 nanosecond is achievable using existing UWB chipsets. The same link that is used for time synchronization can carry data for two-way communication, and provide fast, accurate ranging in Line of Sight (LOS), and non-LOS environments. These three capabilities are necessary functions needed to localize transmitters by Time Difference of Arrival (TDOA) methods. TM-UWB radar or radio generates narrow pulse (0.5 ns) pseudo-randomly in time. In order to receive these pulses coherently, the receiver needs to synchronize with the transmitter down to tens of picoseconds. We plan to take advantage of this precision timing to achieve time synchronization among multiple RF sensors making up the TDOA sensor.

* information listed above is at the time of submission.

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