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System for Detection, Identification, and Geolocation of Radio Emitters with low-Swap Sensors (DIGRESS)

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: W31P4Q-11-C-0221
Agency Tracking Number: 11SB1-0159
Amount: $98,969.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: SB111-004
Solicitation Number: 2011.1
Solicitation Year: 2011
Award Year: 2011
Award Start Date (Proposal Award Date): 2011-04-14
Award End Date (Contract End Date): N/A
Small Business Information
500 West Cummings Park - Ste 3000, Woburn, MA, -
DUNS: 859244204
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: Y
Principal Investigator
 Eric Wemhoff
 Senior Research Engineer
 (781) 933-5355
Business Contact
 Jay Miselis
Title: Corporate Controller
Phone: (781) 933-5355
Research Institution
There is currently no convenient, effective way to detect, identify, and geolocate (DIG) personal UHF/VHF radio communications devices in field operations. These are commonly used by adversary command, control, and spotter activity. The techniques used by special ops, search and rescue, and electronic warfare personnel do not satisfy this need because soldiers in field situations lack the time, mobility, highly trained personnel, specialized equipment, and airborne ELINT assets that these methods variously require. There is new opportunity in increased availability to ground forces of micro/small unmanned aerial systems (MUAS). These can provide altitude, LOS, and mobility for sensor equipment. Two main challenges remain, however: onboard payload SWAP limits direction-finding (DF) prospects, and operation of the system can still be challenging. We are developing: small, actively tuned antennas; receiver hardware, and data fusion algorithms that can overcome the limitations for traditional direction-finding (DF) systems. The system has less than one foot-pound-watt SWAP, with good DIG performance, to be verified in phase1. It will automatically collect and combine data from any available system receivers, DIG the emitters present, and show a visual summary of results, along with aids to the operator including UAV trajectories for optimal geolocation speed and accuracy.

* Information listed above is at the time of submission. *

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