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Solid State Radar Emitter Identification

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-19-C-0145
Agency Tracking Number: N171-043-0244
Amount: $499,995.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: N171-043
Solicitation Number: 2017.1
Solicitation Year: 2017
Award Year: 2019
Award Start Date (Proposal Award Date): 2019-01-02
Award End Date (Contract End Date): 2020-01-05
Small Business Information
62 Johnny Cake Hill, Middletown, RI, 02842
DUNS: 072118748
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Samuel Tannatt
 (860) 440-8505
Business Contact
 Elizabeth Goetz-Patridge
Phone: (401) 847-2260
Research Institution
The ultimate goal of this SBIR effort is to deliver improvements to existing Fleet electronic warfare support systems by using statistical learning techniques to aid in the classification and unique identification of modern radar emitters. Since software-defined and solid-state emitters do not have the analog features traditionally used for classification, we will use more abstract, but well-defined, feature extraction techniques in the joint time-frequency domain to exploit information hidden inside the noisy Radio Frequency (RF) signal that can be used to differentiate between multiple emitters.

SEA CORP has conducted a proof-of-concept demonstration of the feature extraction, feature selection, and classification processes using real-world, labeled datasets. Processes and scripts were created to import Burst Digitized Intermediate Frequency (BDIF) and Continuous Digital Intermediate Frequency (CDIF) data into manageable-sized data structures. Initial classification results from 5,000-instance subsets created at random from a database of more than 550,000 unique instances showed up to 91% correct classification performance at the emitter level. Continued optimization of the feature extraction and feature selection algorithms will allow testing on larger datasets with the ultimate goal of transitioning our Solid State Radar Identification (SSRID) process into Navy Program of Record systems.

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

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