#QuestionAnswerDate Posted
001 How many awards are you anticipating? How large will the awards be? These questions are addressed in IARPA Frequently Asked Questions B1 and B2 at: http://www.iarpa.gov/faq.html. There is no predetermined award size or number of awards. 11/01/12
002 Can we submit a proposal as a prime and also be a subcontractor on a proposal submitted by another organization? Offerors may submit a proposal as a prime and as a subcontractor, but consistent with IARPA FAQ T1 at http://www.iarpa.gov/faq.html, "an individual or organization associated with multiple teams must take care not to commit more resources than can be effectively applied to the program under the BAA to which they are proposing." 11/01/12
003 Since back propagation can be closely tied to geolocation and the focus of this BAA is not on geolocation, must our techniques be capable of both forward and backward ray tracing? As described in Section 1.A.1, “The system must provide the ability to propagate rays from a source location to a specific receive point as well as back-propagate signals from a receive location given observed angles of arrival….” As described in Section 1.A, “In later phases of the program these technology innovations will be further developed and integrated into geolocation and source characterization applications.” 11/01/12
004 Who should we contact if there is an administrative question about accounts or proposal submission through the IARPA IDEAS web site? A help desk is able to provide assistance. The helpdesk is available to answer questions by phone Monday-Friday from 8:00am to 5:00pm EST, or by email by filling out an on-line form. The phone number is: 1-855-235-0558, and the on-line form can be found at: https://iarpa-ideas.gov/client/HelpDesk/HelpDesk.aspx. 11/01/12
005 How close are the GFI reference sources to the sites that will be used for testing the performer developments? Is a local ionospheric model using reference source near the signal of interest sufficient? As described in Section 1.A.1 on page 5, "The system shall be capable of predicting propagation for signals from multiple distinct emitters arriving from different azimuth and elevation angles simultaneously." An ionospheric model that is local to a specific emitter will not meet that goal. Therefore, the government reference sources will be at a variety of distances and directions relative to the location of the test sources. 11/01/12

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.

 

For information contact:

dni-iarpa-info@iarpa.gov

 

Solicitation Status: Closed

IARPA-BAA-12-04
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

#QuestionAnswerDate Posted
001 Will IARPA be interested in line-of-sight geolocation methods in later phases of this program? Per Section 1.A.6, (Topics Not in Scope), for the HFGeo program "IARPA is not interested in approaches that are specific to …. line-of-sight geolocation techniques." 08/03/11
002 Should we plan to make the antennas prototyped under Phase 1A deliverable? Yes, the prototype should be delivered. This is described on Page 22, Section 4.B.1, Section 3 (Detailed Proposal Information) paragraph E, "Deliverables are to include all data, prototypes, evaluation analyses and documents (prototype mechanical and electrical design documentation, construction drawings, ...." 08/03/11
003 If we want to submit two proposals with completely independent approaches in one technical Thrust that are both dependent on a common approach in the other Thrust is that compliant with the BAA submission criteria? Yes. The BAA does not place a limit on the number of proposals that can be submitted by a single organization. 08/03/11
004 Can more than one proposal be submitted to a single Thrust if the proposed approaches are completely independent and separable? Yes. The BAA does not place a limit on the number of proposals that can be submitted by a single organization. 08/03/11
005 Will IARPA provide ray-tracing codes? No, IARPA will not provide ray-tracing codes. Ray-tracing codes are freely available on the web. If a proposal requires ray-tracing then the proposer is responsible for the codes and any expertise needed to utilize them. 08/03/11
006 Is IARPA interested in the entire HF band? Yes, per Table 2, (Program Metrics) the interest spans the entire HF frequency range in order to provide the most flexibility for source range and for varying ionospheric conditions. 08/03/11
007 Is there a target price for the antenna or system? There is no target price in Phase 1. See FAQ B1 at http://www.iarpa.gov/faq under Engagement Opportunities. 08/03/11
008 Are the metrics described in Table 2, threshold or objective metrics. The HFGeo program does not have threshold and objective metrics. As stated in Section 1.B (Program Milestones and Metrics) these metrics are used "to evaluate the effectiveness of proposed solutions in achieving the stated program objectives and to determine whether satisfactory progress is being made to warrant continued funding of the program." 08/03/11
009 The maximum dimension of a sensor (array) for a single site is described as < 40 m with height < 15 m in Table 2. Is there a size requirement on the prototype? The Table 2 (Program Metrics) Footprint Phase 1 metric is "Single element or building block." In Section 1.A.1. on page 6 of the BAA, this is clarified as an "...integrated vector sensor element or minimal subset of the sensor array…", and "the prototype should be capable of set-up in the test configuraton without use of heavy equipment." Additionally it states that the prototype "will scale to an array that can meet the overall Program goals." 08/03/11
010 What types of contracts may be proposed? The type of contract that may be awarded is a procurement contract per Section 2, "Award Information." According to Section 4.B.2, "Section 2, Cover Sheet," the offeror should indicate whether they are proposing a cost plus fixed fee or cost contract with no fee. 08/03/11
011 Can you provide references for the example antennas used in your Proposers' Day slides? The published references for the example antennas are: Report DSTO-TR-2321, W Martinsen; Patent 4433336, A. Carr, assigned to USA, DoC; and Patent 6538616, F. Bedard, assigned to USA, NSA. However, these examples should not be considered an endorsement of a specific antenna topology or approach to achieving the project goals. 08/03/11

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. If successful, HFGeo will deliver rigorously tested technology capable of accurately geolocating and characterizing HF sources.

This BAA is for Phase 1A only to develop new concepts for advanced sensors and signal processing. Subsequent phases may address future challenges, such as ionospheric modeling, integration of these technologies into a prototype system, real-time processing and field demonstrations.

 

For information contact:

dni-iarpa-info@iarpa.gov

 

Solicitation Status: Closed

IARPA-BAA-11-07
Proposers' Day Date: June 22, 2011
BAA Release Date: July 22, 2011

Additional Information

Proposers' Day Briefings

HFGeo logo FINAL low resolutionHigh Frequency (HF) communications systems and radars are in widespread use around the world. Accurate standoff geolocation and characterization of these sources are 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 that a dramatic improvement in HF reception and geolocation is possible.

The HFGeo Program aims to develop and prototype technology that will provide a dramatic improvement in the ability to geolocate and characterize HF emitters. Desired 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 (SNR), signal detection and source geolocation with multi-dimensional adaptive signal processing; and 3) the ability to accurately determine the state of the ionosphere. In later phases of the program, these technology innovations will be further developed and integrated into geolocation and source characterization applications.

Related Program(s)