We are in the market for LiDAR scanners across terrestrial, mobile and aerial platforms. I had signed up here with the hope of reading on user experiences. Given the cost involved, I would be happy for any guidance primarily from the practical side, in terms of data collection.
For e.g., with the mobile LiDAR is there a way to ensure 100 km of road length to be surveyed in a day, given that my DGPS base can "talk" to the Rover for only up to 15km. Does this mean that I do LiDAR survey for 15 km, come back and move my DGPS base/rover and do the next 15 (30 if you put the base in the middle)? Or is there is a technology that can let me drive the entire 100 km without having to change base every 30km?
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No need for RTK, just use PPK. Can use your base or any near by CORS collecting static at 1hz.
I always keep base within 5 miles of the unit. Keep the vectors within reason. Avoid RTK, loss of base can cause lots of headaches. Run two bases at all times (redundant is key). Don't buy DMI, pointless and often degrades the data. Collect lots of checks, and collect lots of overlap.
Trimble is my suggestion, mobile, terrestrial, GNSS, convential data can all be in one software and one office file.
And most importantly...prepare to make lots of mistakes there is a huge learning curve.
The base station setup location is exactly the same as doing any GNSS surveys. Thats the simple part.
If your looking to get into mobile lidar, the data acquisition software and IMU calibrations is the most tricky and where you should focus your attention. Even if your getting super accurate GPS,,,,, without the roll, pitch, yaw offsets calibrated properly, you'll throw all the data off.
