3D TDOA Geolocation
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When: 03/08/2018
14:00 - 15:00
Where: United States

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3D TDOA Geolocation

Thursday, March 08, 2018 14:00 until 15:00 EST



TDOA (Time Difference of Arrival) geolocation, also known as multilateration, is a well-known and highly effective technique for accurate localization and tracking of RF emitters. The technique is employed widely in EW applications including locating enemies in the battlefield. It is also used to locate sources of interference in test and training scenarios. Most of these applications have traditionally been restricted to 2D TDOA where sensors and targets are ground-based.

The growing threat from UAVs has prompted an increased interest in techniques to geolocate emitters in three dimensions. TDOA techniques can be adapted for this purpose. Emerging threats are not restricted to high-end military UAVs in the battlefield. The use of commercial small UAV (sUAV) or drones is growing exponentially with ever increasing concerns for unintentional intrusion into secure military facilities, deliberate intrusion to create nuisance or conduct surveillance, interference with commercial and general aviation aircraft, and the use of low cost commercial drones to carry explosives.

3D TDOA geolocation techniques have been demonstrated and are highly effective for a range of airborne emitters ranging from small low flying drones to high speed, high altitude aircraft. The technique has demonstrated the ability to be accurate, provide fast updates, and include simultaneous tracking of multiple air vehicles. In this presentation, 3D TDOA technology will be described and real world results presented that demonstrate the potential for countering both ground-based and airborne threats. Simulations will be presented discussing how sensor placement affects system geolocation accuracy, including the effect of adding airborne and mobile sensors.


Marty Mosier is General Manager of CRFS Inc., a leading supplier of next-generation real-time spectrum monitoring systems to military users. He has over 35 years of experience including senior positions in the development of electronic warfare systems, unmanned aerial systems and satellite launch vehicles. Marty has a Master of Science in Management from University of Southern California and BS in Engineering from Harvey Mudd College. Mr. Mosier is a Registered Professional Engineer (PE) and Project Management Professional (PMP).


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For questions, please contact Tim Hutchison.


PLEASE NOTE:  By registering for this webinar, you are providing explicit consent that the details of your registration may be used by the Association of Old Crows (AOC), the presenter, and/or the sponsor(s) to contact you via email for informational and marketing purposes.


The entire presentation and Q&A will be recorded for viewing approximately 24 hours after the event. You can find the link to the recording in our AOC Virtual Series Archive. (separate registration required to view the recording)


With over 13,000 members internationally, the Association of Old Crows is an organization for individuals who have common interests in Electronic Warfare (EW), Electromagnetic Spectrum Management Operations, Cyber Electromagnetic Activities (CEMA), Information Operations (IO), and other information related capabilities. The Association of Old Crows provides a means of connecting members and organizations nationally and internationally across government, defense, industry, and academia to promote the exchange of ideas and information, and provides a platform to recognize advances and contributions in these fields.
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