DEVELOPING A 3D WAVEFORM LIDAR SIMULATOR FOR FOREST

Developing a 3d Waveform Lidar Simulator for Forest

Waveform LiDAR systems is widely used in several fields such as terrain survey, disaster monitoring and forest monitoring. Especially, in forest research, using an echo signal is expected for understanding structural characteristics of the forest. However, an echo signal highly depends on the sensor configuration, the footprint size, the canopy structure, and terrain condition. Therefore, it is...

3D Modelling of Individual Trees Using Full-waveform Lidar

For the last few decades, analysis of forest area has been conducted using remote sensing techniques such as aerial photogrammetry, satellite imagery, synthetic aperture radar and lidar. Airborne laser scanning in particular offers a cost-effective, versatile, operationally flexible and robust sampling tool for forest management. There is a growing industry trend towards techniques of ‘precisio...

End-to-End Simulation for a Forest-Dedicated Full-Waveform Lidar Onboard a Satellite Initialized from Airborne Ultraviolet Lidar Experiments

In order to study forests at the global scale, a detailed link budget for a lidar system onboard satellite is presented. It is based on an original approach coupling airborne lidar observations and an end-to-end simulator. The simulator is initialized by airborne lidar measurements performed over temperate and tropical forests on the French territory, representing a wide range of forests ecosys...

Analysis of Lidar Waveform Data for Ground Filtering in a Forest Area

The airborne laser scanning (ALS) data is becoming a standard approach for generating digital elevation model (DEM) in recent years. To generate the DEM, the ground points in the point clouds need to be classified firstly. Traditionally, the points provided by the multi-return LiDAR system only provide the three-dimension coordinates of points and the classification approaches normally can main...

A threshold insensitive method for locating the forest canopy top with waveform lidar