SETT ATT SERSKILJA DEPLACERANDE MAL FRAN EN VATTENYTA

This invention relates to a method and system for distinguishing between displacing targets and a surface of water by transmitting pulses from a transmitter that is submerged in the water, the pulses being reflected and received by a receiver, also submerged in the water. The variations in the dista...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	H P LOID, P-A RESJO
Format:	Patent
Sprache:	swe
Schlagworte:	AMMUNITION AMMUNITION FUZES ANALOGOUS ARRANGEMENTS USING OTHER WAVES ARMING OR SAFETY MEANS THEREFOR BLASTING DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES HEATING LIGHTING LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MECHANICAL ENGINEERING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING WEAPONS
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Beschreibung
Zusammenfassung:	This invention relates to a method and system for distinguishing between displacing targets and a surface of water by transmitting pulses from a transmitter that is submerged in the water, the pulses being reflected and received by a receiver, also submerged in the water. The variations in the distance to the reflecting surface for consecutive pulses are measured and compared with a first value, determined inter alia from the state of the sea, and with another value, determined from the size of the target.