Improved Analysis Techniques for Prediction of Avionics Electromagnetic Interference and Vulnerability
Navy SBIR FY2008.2


Sol No.: Navy SBIR FY2008.2
Topic No.: N08-132
Topic Title: Improved Analysis Techniques for Prediction of Avionics Electromagnetic Interference and Vulnerability
Proposal No.: N082-132-0006
Firm: Delcross Technologies, LLC
2009 Fox Drive
Unit K
Champaign, Illinois 61820
Contact: Fred German
Phone: (217) 373-4836
Web Site: www.delcross.com
Abstract: Physics-based modeling and simulation tools for predicting electromagnetic interference (EMI) and vulnerability (EMV) between RF systems are playing an increasingly important role in system level performance predictions. In order to accurately capture all of the complexity associated with RF systems on a modern military platform, very sophisticated multi-physics simulators using models of multiple levels of fidelity are required. In order to instill a high level of confidence in the tool's predictive capability, analysis improvements based on lessons learned in a complete and careful measurement-based validation on real-world systems is a must. Under the proposed project Delcross Technologies and its team will undertake a comprehensive measurement-based validation of its Electromagnetic Interference Toolkit (EMIT) based at first on a canonical test system and then on a complete modern airborne system involving multiple RF systems. Based on the benchmarking against these systems, enhancements to EMIT's multi-physics analysis engines and field-circuit interaction module will be identified and implemented. The methodologies used for creating models of RF components to be used by the simulator will also be refined based on the measurements. The ultimate outcome of this project will be an improved and fully-validated multi-fidelity/multi-physics simulation tool for the analysis of cosite and intersystem EMI.
Benefits: The measurement-based validation and associated analysis improvements to EMIT performed under this project will fill a void in current analysis tools used for predicting cosite and intersystem EMI. For the first time, a fully validated tool will be available for analysts of different skill levels that incorporates modeling at multiple levels of fidelity by integrating multi-physics solvers and a field-circuit interaction module into a single analysis environment, thus allowing the user to work with whatever level of information is available on a given system. The validation and improvements performed here will instill a high level of confidence in the tool's predictive capabilities. We anticipate that the tool will find widespread application in commercial markets as well where the explosive growth of wireless RF systems has led to a plethora of interference issues that must be solved in a cost-effective way prior to system deployment in order to insure acceptable return on investment.

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