Passive identification friend or foe (IFF) system

A system is provided for passively producing at least two distinct signal patterns. The system can be used for passively identifying friend or foe in an environment and operates in a hyper spectral mode that accommodates multiple bands simultaneously. Exemplary embodiments receive radiated energy wi...

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Bibliographische Detailangaben
1. Verfasser:	PERGANDE AL
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
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Beschreibung
Zusammenfassung:	A system is provided for passively producing at least two distinct signal patterns. The system can be used for passively identifying friend or foe in an environment and operates in a hyper spectral mode that accommodates multiple bands simultaneously. Exemplary embodiments receive radiated energy within a resonant cavity, and use an absorber and a reflector to absorb and reflect desired frequencies of the incoming energy. A controller is connected to the IFF system and controls the switching back and forth between the absorber and the reflector to produce a signal having a desired data format. The encoded data can be used to determine the status of the candidate target.