High Frequency Geolocation and Characterization (HFGeo) Phase 1B

High Frequency (HF) communications systems and radars are in widespread use around the world. Accurate stand-off geolocation and characterization of these sources is difficult because of ionospheric variations, the high noise environment that exists at these frequencies, and ionospheric polarization rotation, multipath induced signal fading, and simultaneous multiple angles-of-arrival.

Recent advances in high dynamic range receivers, antenna techniques, adaptive signal processing, and ionospheric ray path prediction, along with improved measurement and modeling techniques suggest a dramatic improvement in HF reception and geolocation is possible.

The HFGeo Program aims to dramatically improve the ability to geolocate and characterize HF emitters. Required technical innovations include 1) the ability to accurately resolve multiple angles-of-arrival and polarization states through novel antenna concepts, 2) the ability to enhance signal-to-noise ratio and signal detection through the use of multi-dimensional adaptive signal processing, 3) the ability to accurately determine the state of the ionosphere and 4) integration of these component technologies into geolocation and source characterization applications. A prior solicitation, IARPA-BAA-11-07, covered the first two components of the HFGeo program (novel antenna concepts and signal processing algorithms) as Phase 1A of the program. This Phase 1B BAA addresses the third topic area of ionospheric modeling. In later phases of the program, these technology innovations will be further developed and integrated into geolocation and source characterization applications. If successful, HFGeo will deliver rigorously tested technology capable of accurately geolocating and characterizing HF sources.


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Solicitation Status: Closed

Proposers' Day Date: July 13, 2012
BAA Release Date: September 28, 2012
BAA Question Period: September 28, 2012 - November 1, 2012
Proposal Due Date: November 12, 2012
BAA Closing Date: March 25, 2013

Additional Information

Proposers' Day Briefings