Ultra-High Frequency Clutter Model for Airborne Surveillance Radar

The objective of this project is to mature and extend concepts and algorithms to prototype real-time digital generation site specific radar clutter signals suitable for direct injection into multi-channel radar systems at RF with fidelities that support Space-Time Adaptive Processing. A real-time digital clutter simulation will be completed that is composed of generating site specific clutter and generating clutter sampled waveforms. Within the short look ahead time of real-time message receipt from the radar controller, weak return scatterers are filtered out and the clutter waveforms for the first pulse are generated for eighteen channels with each subsequent pulse generated within the radars Pulse Repetition Interval (PRI). Simulation results will be compared to GFE collected data after the incorporation of installed antenna patterns.RF generation for direct injection will be prototyped, with the E-2D Next Generation Advanced Hawkeye Radar as the primary focus. Initial transition opportunity is the Advanced Radar Environment Simulator (ARES) and is extensible to other current and future airborne Navy radars and conceptual radars that include bistatic and multistatic. Additional candidate transitions include clutter generation for simulations and digital emulators that support procurement and provide certification artifacts for Detect And Avoid radars.