VIRTUAL NOISE RADAR WAVEFORM FOR REDUCED RADAR DETECTABILITY

摘要

Apparatus (10) for generating a radar waveform (W). A noises generator (20)generates a series of pulses in a pseudo-random pattern, and a frequencygenerator (16) generates a carrier wave having a frequency within apredetermined band of frequencies. The carrier wave is modulated with thepseudo-random pattern of pulses, and the resulting modulated carrier wavepassed through both a filter (30) and an attenuator (32) to suppress anydiscernible feature or signal characteristics of the resulting waveform. Themodulated carrier is transmitted by an antenna (42) and a received returnsignal is processed by a signal processor (100) to obtain pertinentinformation about a target. The transmitted waveform has no discernibleattributes by which the waveform, if processed and analyzed by someone else'sradar detector (E) would convey any intelligence as to the presence or sourceof the transmitted waveform.