Vehicle detection system and method of operation

The specification discloses a vehicle detection system which operates to detect the presence of land vehicles by detecting and analyzing the acoustical spectrum therefrom. In particular, the system is arranged to eliminate false indications due to overflying aircraft by diminishing the sensitivity o...

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Bibliographische Detailangaben
Hauptverfasser: GILL, JR., HOMER R, ORTLEPP, HANS M
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:The specification discloses a vehicle detection system which operates to detect the presence of land vehicles by detecting and analyzing the acoustical spectrum therefrom. In particular, the system is arranged to eliminate false indications due to overflying aircraft by diminishing the sensitivity of the system for small signal-to-noise ratios and increasing the sensitivity up to a predetermined maximum for higher signal-to-noise ratios.