Realtime Body Dynamic Antenna Modeled GPS/JAMMER Simulator for HWIL

To achieve high dynamic motion simulation of advanced guidance and control systems, closed-loop simulation must be provided to sensors in real time for HWIL simulation. Under this proposed SBIR effort we will develop a real-time GPS/Jammer simulator to provide complex wavefront of multiple satellite and noise/jamming sources with dynamic movement and variable placements for a six-degree-of-freedom motion simulation, with interfaces with inertial measurement sensors and digital GPS receivers. The proposed approach is to use a high J/S signal generator integrated with a dynamic multipath solver based on geometrical theory of diffraction (GTD). This will allow us to simulate the complex wavefront in highly dynamic environment. Under this Phase I effort we plan to demonstrate a high J/S GPS wavefront generator through software simulation and hardware demonstration, and efficient multipath characterization in a highly dynamic environment. A design will also be presented for a real-time GPS/JAMMER simulator prototype system to be implemented and tested under the Phase II effort. The result of the development of the real time GPS/JAMMER simulator will allow an integrated simulation and testing of high mobility GPS navigation and tracking system under complex environments for HWIL simulation.