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How to achieve sub-meter accuracy in remote locations?
Stalemate
1 Point
Activity: Create 3D reconstructions of geological outcrops. Using imagery from a DJI Phantom 4, and SfM-MVS algorithms. To orientate the SfM-MVS reconstruction I will use ground control points (GCPs). I require sub-meter accuracy to measure these GCPs.
Areas: Remote, places with no mobile or RTK networks. First project will be in southwest Tibet.
Question 1: Is a SBAS solution the best way to go (I do not need cm accuracy)?
Question 2: How can I find out the coverage of SBAS, India has GAGAN, does that cover Tibet? China also has SNAS, but is that functional? Where can I confirm the coverage before I find out in the field that I am not within range? Are there commercial SBAS that I can pay for that cover Tibet?
Question 3: What receiver do I look for? I believe that the Arrow 200 GNSS and the SXblue II+ GNSS receivers will do what I want? The Bad Elf GNSS Surveyor and Juniper Systems Geode are much cheaper, can they also work in Tibet?
Question 4: Is there a better (cheaper) solution that I am unaware of?
Question 5: How can I check if there is a RTK network available before I arrive to the field?
I appreciate any help.
Areas: Remote, places with no mobile or RTK networks. First project will be in southwest Tibet.
Question 1: Is a SBAS solution the best way to go (I do not need cm accuracy)?
Question 2: How can I find out the coverage of SBAS, India has GAGAN, does that cover Tibet? China also has SNAS, but is that functional? Where can I confirm the coverage before I find out in the field that I am not within range? Are there commercial SBAS that I can pay for that cover Tibet?
Question 3: What receiver do I look for? I believe that the Arrow 200 GNSS and the SXblue II+ GNSS receivers will do what I want? The Bad Elf GNSS Surveyor and Juniper Systems Geode are much cheaper, can they also work in Tibet?
Question 4: Is there a better (cheaper) solution that I am unaware of?
Question 5: How can I check if there is a RTK network available before I arrive to the field?
I appreciate any help.
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