Clean Electromagnetic Environment (EME) Generation

Echo Ridge proposes to develop and evaluate an Intermodulation (IM) Minimization Applique (IMA) to operate in conjunction with EPG's electromagnetic environment (EME) generation systems. The IMA provides a menu of IM reduction tools spanning simple and low cost software approaches to advanced high performance hardware intensive approaches, depending on the nature of the generated RF environment and degree of IM reduction desired. This"tool box"approach provides the best opportunity for a solution to be developed in the course of the research that meets cost/performance constraints that may be imposed by EPG. The IMA is designed to be used in conjunction with existing unmodified EME generation resources, and leverages the prototype Virtual RF Environment (VRE) hardware and software design to be delivered under the Phase II VRE SBIR effort (product name DYnamic Spectrum Environment emulator or DYSE) as both an prototype host and test platform. The tools to be provided span simple script analysis in the context of a PA model to predicts IM as a function of frequency and power to complete pre-distortion signal insertion approaches calculated on the fly in digital hardware and implemented at the RF level.