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GPS CONTROL or GNSS SURVEY SERVICES & TRAINING
 
 

 

GPS or Global Positioning System, or GNSS Global Navigation Satellite System
 
  • Keywords : gps survey, gnss survey, drone survey, levelling survey, hills survey, hill survey, railway survey, new railway survey, Airborne lidar survey, Power transmission line, Route Planning , Line Construction, Optimization route,Catenary analysis, Identification of tower construction sites, Vegetation Enchoachment management, Change detection, As built survey..
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  • GPS or Global Positioning System was developed and is maintained by the US Department of Defense. Since the introduction of GPS many other countries have developed similar satellite based navigation systems,
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    Surveying with GPS
     
  • Initially developed for military use, GPS is now part of everyday life. A few of the many things that GPS is used in include: mobile phones, in-car navigation and search and rescue equipment. But there is a wide variety of equipment and techniques that can be used for surveying.
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  • GPS was rapidly adapted for surveying, as it can give a position (Latitude, Longitude and Height) directly, without the need to measure angles and distances between intermediate points. Survey control could now be established almost anywhere and it was only necessary to have a clear view of the sky so the signal from the GPS satellites could be received clearly.
  • GPS is similar in some ways to the Trilateration and EDM previously discussed, except that the known positions are now the GPS satellites (and their orbits) 20,000 km in space. The equipment and calculations are extremely complex, but for the user the process is generally very simple.
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  • In the commonly available receivers, the GPS receiver almost instantly works out its position (Latitude, Longitude and Height) with an uncertainty of a few metres, from the data broadcast by the satellites. This data includes a description of the satellites changing position (its orbit) and the time the data was transmitted.
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    SURVEY SERVICES & TRAINING
     
  • Total Station
  • Topographical Survey
  • Property Survey
  • Setting Out Works Survey
  • Power Line Survey Survey
  • Railway survey
  • Hills survey
  • Minning survey
  • Road survey
  • Airport survey
  • Airforce NOC survey
  • UAV survey
  • Lidar survey
  • Pipeline survey
  • Power survey
  • Roperty survey
  • Geo Technical survey
  • Utility survey
  • Control Point survey
  • Route survey
  • Airport survey
  • Special survey
  • Contour survey
  • Levelling survey
  • Railway Project survey
  • Interior survey
  • Building survey
  • Road survey
  • Township survey
  • Drone survey
  • Drone Aerial survey
  • Drone survey
  • GBS survey
  • GPS Control Survey
  • Engineering survey
  • Transmission Line survey
  • Dam and Lake survey
  • Layout survey
  • Boundary survey
  • FMB Drawing survey
  • Canal survey
  • Marking survey
  • Layout Marking survey
  • Columns Marking survey
  • Excavation Points Marking survey
  • Pile Marking survey
  • Building Outer Lines Marking survey
  • Commercial
  • Residential
  • All Types of Construction Layout / Staking
  • ALTA / ACSM Surveys
  • As-Built-Record Surveys
  • Auction Surveys and Plats
  • Boundary Surveys
  • Control Surveys
  • Court Surveys / Professional Witness
  • Disputes
  • ividing and Platting of Land for City or County Planning Commissions
  • Flood Elevation Certificates
  • Foundation Surveys
  • Large Acreage Surveys
  • LOMA's / LOMR's
  • Metes and Bounds
  • Mortgage Surveys
  • Property Surveys for Fences, Pools, and Additions
  • Quantity Surveys
  • Stockpile Quantity Surveys
  • Subdivision Development
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    Types of land surveying List Methods
     
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