NEW CONDEPTS AND INNOVATIONS FOR AERONAUTICAL SYSTEMS/SUBSYSTEMS: DIGITAL RF MEMORY OPERATIONAL CONTROL TECHNIQUES

AN INCREASINGLY IMPORTANT REQUIREMENT IN ECM JAMMER SYSTEMS IS COHERENT RECEPTION OF THREAT SIGNALS, PRECISE MANIPULATION OF THE WAVEFORM AND RETRANSMISSION BACK TO THE THREAT FOR PURPOSES OF DECEPTION. THE DRFM (DIGITAL RF MEMORY) IS ONE PARTICULAR TYPE OF STORAGE DEVICE WHICH MAKESCOHERENT JAMMING MODULATION SCHEMES POSSIBLE. DRFM DEVICES,HOWEVER, ARE EXPENSIVE AND HAVE SEVERAL PERFORMANCE PROBLEMS. THESE LIMITATIONS ARE LARGELY DUE TO THE PRECEIVED REQUIREMENT OF A WIDE BANDWIDTH (E.G., 500 MHZ). THE PURPOSE OF THIS STUDY IS TO DETERMINE IF A NARROWER BANDWIDTH DRFM CAN ADEQUATELY SATISFY PERFORMANCE AND OPERATIONAL IMPLEMENTATION REQUIREMENTS. THE PHASE I EFFORTWILL ANALYZE DRFM REQUIREMENTS FROM AN INTEGRATED SYSTEMS VIEWPOINT. THE STUDY WILL ESTABLISH THE DATA COLLECTION ANDCONTROL REQUIREMENTS FOR A RECEIVER/DRFM SYSTEM, AND PERFORMTHE ANALYSES TO DETERMINE HOW A NARROWBAND SYSTEM CAN SUCCEFULLY SUPPORT ECM REQUIREMENTS IN A REALISTIC AND DENSE COMBAT SIGNAL ENVIRONMENT. STUDY EFFORTS WILL DESCRIBE THE SIGNAL ENVIRONMENT THE DRFM JAMMER IS LIKELY TO EXPERIENCE, ANALYZE DATA COLLECTION AND CONTROL REQUIREMENTS, AND FORMULATE AN IMPLEMENTATION SCHEME BASED ON THE ADVANCED RECEIVER PROCESSOR SYSTEM PREVIOUSLY DEVELOPED BY AMHERST SYSTEMS.