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GCP measurements

Discussion in 'Pro/Adv Discussion' started by clowther, Mar 25, 2016.

  1. clowther

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    Somwhere in Wyoming.
    What's a cost effective fairly accurate way to measure gcp locations? Without spending $25k on a rover and base setup? I have a phantom 3 pro and want to improve the accuracy of my aerial mapping.


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  2. alokbhargava

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    Google Earh and your iPhone
     
  3. PrecisionAeroworks

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    You can rent an RTK-GPS "stick" to mark GCP's. If you need cm accurate geolocation, then this is about the only choice. I agree, it is expensive to buy or hire.

    App based GPS locators will usually get you a pretty good answer in X and Y, but altitude can be off by 10-30m. Usually not good enough.
     
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