GPS and Command Link Assured Operation

Echo Ridge proposes to develop a comprehensive realtime emulator capable of synthesizing a wide variety of waveforms such as GPS, interferers, and other GNSS signal classes. The system would create an arbitrary number of coherent wavefront RF output channels, synthesize atmospheric and terrain induced perturbations, and emulate propagation affecting phenomena resulting from plasma effects and EMP, and signal manipulation based on 6-DOF receiver motion sensing. The emulator will be based on a platform developed through Air Force and Army Phase I and II SBIR funding entitled DYSE, or Dynamic Spectrum Environment emulator. DYSE has been developed to address similar emerging test needs through the following key attributes including: emulating RF environments by converting RF to/from digital samples, and synthesizing RF sources and environmental effects in the digital domain between multiple physical and virtual systems under test; employing real-time signal processing functions carried out on PC-based CPU, GPU (Graphics Processor Units) and other hardware acceleration; applicable to a very broad variety of RF system development and testing, including communications, radar, jamming, navigation, and cognitive radio; emulating time-varying system platform motion and dynamics, and their effects at the RF level.