DJI Zenmuse L2 Operation Guide

There is a lot to sift through in the Operation Guide for Zenmuse L2

The guide will give you the hard specs on the LiDAR as well as a good explanation on Key Terms: detection range, multiple returns, point cloud rate, scanning mode, scanning pattern and more. 

One area of note is the application scenarios for the L2.  This walks you though the RTK and PPK scenarios including NTRIP, D-RTK 2 and third party base stations.  It doesn't go over third party base stations that can communicate in real time such as the Emlid Reach RS2+ and RS3.  There is a walk through check points including layout.  Then, the manual moves on to route planning, including payload parameters such as return mode and scanning mode.

We'll then receive DJI recommended parameters for various scenarios including: high accuracy in plain areas, high accuracy in hilly areas, high accuracy in forested areas, high efficiency in those areas, and forests.  One piece to note is the altitude in all scenarios is 80 meters or higher.  Typically we suggest flying closer to 50 meters for the highest accuracy levels.  Beyond that, maximum returns are recommended except in high efficiency plane and hilly areas.  The only time the non-repetitive scanning is recommended is in forests.  

Next the manual goes through data processing in DJI Terra.  This gives a good guide on RAM needed based on the size of the point cloud.  It goes into detail on PPK processing next and has a good walk through the settings.  

The manual then goes into manual flights using the L2 and the parameters recommended.  

An entire section is dedicated to power line scenarios using the L2 LiDAR. 

More details on the D-RTK 2 are given in later on.  

All in all this a good resource, and a good starting point to go off of and modify to tailor your specific needs.