LORAN

E258732

hyperbolic navigation system radio navigation system terrestrial navigation system

LORAN is a long-range terrestrial radio navigation system originally developed for maritime and aviation positioning before the advent of satellite-based GPS.

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All labels observed (3)

Label	Occurrences
LORAN canonical	3
LORAN-A	1
eLORAN	1

Statements (48)

Predicate	Object
instanceOf	hyperbolic navigation system ⓘ radio navigation system ⓘ terrestrial navigation system ⓘ
acronymFor	Long Range Navigation ⓘ
application	coastal navigation ⓘ oceanic navigation ⓘ over-water aviation navigation ⓘ
coordinateSystem	hyperbolic lines of position ⓘ
coverageType	long-range ⓘ
dataProvided	course information ⓘ position ⓘ time ⓘ
developedDuring	World War II ⓘ surface form: World War II era
developedFor	aviation navigation ⓘ maritime navigation ⓘ
eLORANRole	potential GPS backup system ⓘ
frequencyBand	low frequency ⓘ
fullName	Long Range Navigation ⓘ
infrastructureType	fixed land-based transmitters ⓘ
initialUsers	Allied air forces ⓘ Allied navies ⓘ surface form: Allied naval forces United States Armed Forces ⓘ surface form: United States military
LORAN-CAccuracy	on the order of hundreds of meters ⓘ
LORAN-CFrequencyBand	100 kHz band ⓘ
measurementPrinciple	time difference of arrival ⓘ
navigationType	radio-based navigation ⓘ
notableVariant	LORAN self-linksurface differs ⓘ surface form: LORAN-A Long Range Navigation ⓘ surface form: LORAN-C LORAN self-linksurface differs ⓘ surface form: eLORAN
operationalDomain	terrestrial ⓘ
originalDeveloper	Massachusetts Institute of Technology Radiation Laboratory ⓘ United States Navy ⓘ surface form: U.S. Navy United States of America ⓘ surface form: United States
positionFixMethod	intersection of hyperbolic lines ⓘ
primaryFunction	navigation ⓘ positioning ⓘ
primaryUsePeriod	mid-20th century ⓘ
rangeCapability	hundreds of nautical miles ⓘ
requires	network of synchronized transmitting stations ⓘ precise timing synchronization ⓘ
signalPropagationMode	groundwave ⓘ skywave ⓘ
signalType	pulsed radio signal ⓘ
supersededBy	GPS ⓘ satellite navigation systems ⓘ
timingReference	atomic clocks ⓘ
userEquipment	LORAN receiver ⓘ
usesMedium	radio waves ⓘ

Referenced by (5)

Full triples — surface form annotated when it differs from this entity's canonical label.

Gee → successor → LORAN ⓘ

Gee navigation system → successor → LORAN ⓘ

LORAN → notableVariant → LORAN self-linksurface differs ⓘ

this entity surface form: LORAN-A

LORAN → notableVariant → LORAN self-linksurface differs ⓘ

this entity surface form: eLORAN

GEE → successor → LORAN ⓘ