Phoenix LiDAR Systems User Manual

Welcome
SpatialExplorer 8
LiDARMill Cloud
FlightPlanner
Hardware and Interfaces
Data Acquisition and UAV Piloting
MissionGuidance
GNSS Hardware and Ground Control
Reports
General FAQs
Mapping Terms and Definitions
Abbreviations
Accuracy Standards & Quantification
Examples: How to ensure accurate Georeferencing of Trajectories and Pointclouds
- Example 1: Static Datum
- Example 2: Dynamic Datum
3rd Party Software Documentation
Clock bias adjustment
Legacy Documentation

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3rd Party Software Documentation

Bathymetric LiDAR Processing in RiProcess

Creating a Project in RiProcess

Processing Parameters

Exponential Decomposition

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Last updated 13 hours ago

Exponential Decomposition (XDC) is typically able to extract bathymetric points further underwater than Online Waveform Processing (OWP). XDC accomplishes this by averaging several waveforms to increase the signal-to-noise ratio in regards to bathymetric returns.

XDC processing is more intensive and requires processing to be restricted to only areas with water coverage. This is done using a GEOJSON format polygon definition file. See the following Riegl documentation regarding creating a GEOJSON polygon in QGIS and ArcGIS:

Once the polygon is created, you should enable XDC and waveform averaging:

Waveform averaging using 15 waveforms (as shown above) records bathymetric lidar returns deeper underwater than OWP processing. The benefit of averaging more waveforms (31, 63) is not quite as significant, so it is generally recommended to use 15.

Ensure that your Water Surface Selector is also set to use the same GEOJSON polygon: