Assemble An Active Cancellation Stealth System

摘要

Achieving stealth requires minimizing the radar cross section (RCS) of a vehicle or system as it appears to an opponents radar detection capabilities. To achieve this objective, an active cancellation stealth system was designed by means of a phased-array technique, digital radio-frequency memory (DRFM), and field-programmable-gate-array(FPGA) technology. The DRFM enables precise replication of stored radar waveforms, while the phased-array technology is used to generate the required waveforms to cancel reflected radar returns. The FPGA is essential for signal analysis, database search, and waveform generation and control.