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HF Software Receiver Arrays (HFSRA)

Award Information

Agency:
Department of Defense
Branch:
Air Force
Award ID:
83380
Program Year/Program:
2007 / STTR
Agency Tracking Number:
F074-031-0455
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Atmospheric & Space Technology Research
5777 Central Avenue, Suite 221 Boulder, CO -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2007
Title: HF Software Receiver Arrays (HFSRA)
Agency / Branch: DOD / USAF
Contract: FA9550-07-C-0158
Award Amount: $99,998.00
 

Abstract:

Accurate real-time knowledge of the bottomside ionosphere is necessary for covert HF communications, near vertical incidence sounding, and geolocation of HF transmitters. Sky-wave TDOA geolocation is the "holy grail" of HF geolocation techniques due to its passive nature, low cost, and easy deployment. To achieve sky-wave TDOA it is necessary to know the dominant mode of propagation, which requires accurate knowledge of the bottomside ionosphere over a wide geographical region. The bottomside ionosphere is not well characterized, because existing instrumentation is expensive, sparse, and usually views only a local region. Thus, a requirement exists for low-cost sensors that can provide information over an extended region. To address this problem we propose a feasibility/design study involving two types of HF instrument: (1) a receive-only sensor, that collects data from all known HF "transmitters of opportunity"; (2) a transmit/receive sensor that cycles over a range of frequencies. We will also study the feasibility of combining multiple instruments into a network, whose data can be ingested into appropriate ionospheric specification algorithms. This system will provide the capability to determine the dominant propagation mode for HF geolocation, a solution to the long-standing problem of HF geolocation, and improved security for the USA.

Principal Investigator:

Geoff Crowley
President/Chief Scientist
2108343475
gcrowley@astraspace.net

Business Contact:

Geoff Crowley
President/Chief Scientist
2108343475
gcrowley@astraspace.net
Small Business Information at Submission:

ATMOSPHERIC & SPACE TECHNOLOGY RESEARCH ASSOC.
11118 Quail Pass San Antonio, TX 78249

EIN/Tax ID: 202946717
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
SOUTHWEST RESEARCH INSTITUTE
6220 Culebra Road
San Antonio, TX 78238 5166
Contact: R. B. Kalmbach
Contact Phone: (210) 522-2261
RI Type: Domestic nonprofit research organization