RAS leads the world in the development, implementation, collection, test, evaluation, and analysis of SEI algorithms. RAS has hands-on experience in the development and implementation of SEI algorithms for multiple Air Force platforms. Our experience spans the range of SEI activities, from threat analysis and predictive basis function sorting performance, to implementation in discrete hardware and testing against live emitters.

Due to RAS’s extensive knowledge and background in the SEI community, RAS Participated in National Assessment Tests (NATs) conducted by the SEI Program Office (SEIPO) as an independent operator/referee of SEI hardware. Our work here helped to identify best-of-breed techniques and implementations for advancing the state-of-the-art in Specific Emitter Identification.

RAS’s SEI analysis capabilities include assessment tools that allow modeling and compensation for SEI receiver anomalies, comparison of SEI hardware with model data, sorting & clustering metrics, and tools that allow the analysis of digitized waveform data from threat emitters for assessment of new basis functions or clustering approaches. We have significantly advanced the state-of-the-art in cluster correlation using various clustering metrics.

We continue to develop new and valuable Specific Emitter Feature techniques, such as Specific Emitter Tracking (SET), which is the coupling of Specific Emitter Feature correlation with location and other tracking functions. Technologies such as this hold the promise to significantly reduce miscorrelations, which in an ELINT system can have a significant impact on SEI, determining threat geolocation, and the system’s ability to provide an accurate picture of the RF environment.

Our theoretical and empirical analysis capabilities are supported by our field data collection and analysis expertise. Our engineers have direct experience in designing, planning, and performing both ground- and airborne collections of radar systems’ SEI parameters. We plan and lead all aspects complex collection campaigns for our DOD customers, including comparisons with ground truth data and data validation.