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GPS: Essential for Surveyors

The Global Positioning System (GPS) is a satellite navigation system developed by the U.S. Department of Defense in 1970 originally for military use but now available for civilian use worldwide without charge. GPS provides continuous and unlimited positioning and synchronization information to users anywhere in the world through 24 satellites. Surveyors now benefit greatly from GPS by collecting data much faster and more accurately than before, improving productivity. Nations and organizations use GPS for decision making, resource management, and accurate information on asset locations.

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114 views3 pages

GPS: Essential for Surveyors

The Global Positioning System (GPS) is a satellite navigation system developed by the U.S. Department of Defense in 1970 originally for military use but now available for civilian use worldwide without charge. GPS provides continuous and unlimited positioning and synchronization information to users anywhere in the world through 24 satellites. Surveyors now benefit greatly from GPS by collecting data much faster and more accurately than before, improving productivity. Nations and organizations use GPS for decision making, resource management, and accurate information on asset locations.

Uploaded by

Angelita Zamsan
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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The Global PositioningSystem (GPS) is a satellitenavigationsystemfirstdevelopedbythe U.S.

Department of Defense around 1970. Thefirstobjective of GPS wasto serve as a 'militarysystem'

tomeettheneeds of theUnitedStates. Ontheotherhand, itsobjective transcended and time

lateritwasdestinedforprivate use and madeavailabletothecivilians of the time. Todayitis a

systemthatwe use habitually, sinceitis at thehand of all, bothcivilian and militaryusers. The GPS

is a transcendental tool of daily use, itprovidesunlimitedorcontinuousinformation of positioning

and synchronization (place whereyou are now) in anypart of theworld and

onanyclimaticcondition. Thistool serves anunlimitednumber of usersis a

unidirectionaloperatingsystem (a single direction). The GPS iscomposed of 24 satellites and

wascompleted in 1993. Currently GPS isavailabletoallusersanywhere in

theworldwithoutanydirectcharge.

Today, surveyors are one of thefirsttotakeadvantage of GPS, as thistool has

considerablyevidencedtheincrease in productivitybyformulatingmuch more accurate and reliable

data. Today GPS is a vital part of surveyingactivitiesaroundtheworld. Thecollection of data

generated in GPS ismuchfasterthanconventionaltechniquesthatdidnotrequiretechnology,

reducingtheamount of equipment and labor. Forexample, a single surveyor can achieve in

onedaywhatusedtotakeseveralweeksforanentireteam. GPS modelsthephysicalworld,

frommountains and rivers, tostreets, buildings, cables and pipes, amongothers. Therefore,

thelevel of error isalmostzero in anyworkoranalysis.

Nations, scientificorganizations and militaryorcommercialoperationsaroundtheworld use GPS

technologytofacilitatedecision-making and therational use of resources, and

anyorganizationthatrequiresaccurateinformationonthelocation of itsassets can

benefitfromtheeffectiveness and productivityprovidedby GPS. Topographythroughthe use of


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thissystemisnotconditionedtothedirectvisibilitybetweenthetopographicstations, thatistosay,

thestations can movetogreaterdistancesbetweenone and another and can work in any place

withgoodview of thesky, instead of beinglimitedtoremote tops, as itusedto be requiredbefore.

GPS isespeciallyusefulforsurveyingcoastlines and waterways, wherethere are

fewlandmarksonland. Surveyvessels combine GPS positions with sonar depthsoundingsto

produce nautical charts thattellnavigatorsaboutchanges in waterdepth and thedangersthat lie

beneaththewater. Builders of bridges and oilrigsalsorelyon GPS foraccuratehydrographicsurveys.

GPS isused in agriculturallocation (precisionagriculture), livestock and wildlife, rescue and

rescue, sport, camping and leisure, construction (landlevelling, slopecuts, pipe laying, etc.)

amongothers.

Thecurrent GPS modernizationprogramisadding a specializedcivilian L2 signalwithhigh-

precisionpositioningsupportwithoutthe use of militarysignals. The GPS programisalsoadding a

thirdciviliansignal at the L5 frequencythatwillfurtherimprove performance. After 2020,

thegovernmentwill no longersupportcodelessaccesstomilitary GPS signals.


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BIBLIOGRAPHY

 Alcántara, G. D. (2014). Topografía y sus aplicaciones. México, D.F., MX: Larousse -

Grupo Editorial Patria. P. 1 - 7.Recuperado de

http://bibliotecavirtual.unad.edu.co:2077/lib/unadsp/reader.action?

ppg=1&docID=11017471&tm=1480020780444

 Rúales Zambrano, G. (20,11,2018). OVI GPS. [Archivo de video]. Recuperado

de:http://hdl.handle.net/10596/21596

 El-Rabbany, A. (2002). Introductionto GPS: The Global PositioningSystem. Boston, MA:

Artech House, Inc.

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