LOW COST ELECTRONIC WARFARE SYSTEMS FOR REMOTE OPERATED VEHICLES

EMPHASIS IS PLACED ON THE EW SYSTEM REQUIREMENTS FOR A REMOTELY OPERATED VEHICLE DESIGNED TO PROVIDE OFF-BOARD JAMMING PROTECTION FOR US NAVY SURFACE SHIPS. NOVEL ECM WAVEFORMS ARE SELECTED AND DESCRIBEDWHICH (1) TAKE ADVANTAGE OF THE PRE-CURSOR GEOMETRY AVAILABLE, (2) REQUIRE MINIMUM SELF CONTAINED RECEIVER, PROCESSER, AND FREQUENCY SET-ON CAPABILITY, AND (3) ARE EFFECTIVE AGAINST THE MODERN RADAR THREAT--BOTH TARGETING AND ANTI-SHIP MISSILE HOMING. EFFECTIVE RADIATED POWER (ERP), FIELD OF VIEW (FOV), PRIME POWER CONSTRAINTS, AND OPERATING GEOMETRY REQUIREMENTS ARE ASSESSED. POTENTIAL OFF-BOARD PLATFORMS ARE IDENTIFIED. THE KEY TO SUCCESSFUL EW PROTECTION AGAINSTMULTIPLE SIMULTANEOUS THREATS IS THE USE OF JAMMING GATES WITH RAPID FREQUENCY SET-ON METHODS TO COUNTER FREQUENCY AGILE THREATS. OVERLOAD PROBABILITIES AS A FUNCTION OF ENVIRONMENT AND ECM WAVEFORM PARAMETERS AND THE TRADES ARE PRESENTED. PSUEDO SYNCHRONOUS TIMESHARED WAVEFORMS ARE DESCRIBED WHICH OFFER EXCELLENT PERFORMANCE AGAINST LEADING EDGE TRACKERS. THE NEED OF SEVERAL SYSTEM TRADES AMONG CONFLICTING REQUIREMENTS AND CONSTRAINTS IS ESTABLISHED. APPROXIMATELY 5 MAN-MONTHS OF EFFORT OVER A PERIOD OF 6 MONTHS IS PLANNED.