Jul 2026· The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences· Vol XLIX-B1-2026, pp. 289-297· 0 citations· 5 references
Abstract
Abstract. We evaluate the performance of the newly introduced DJI Zenmuse L3 UAV-borne LiDAR system in comparison to its predecessor L2. We conducted test flights over three representative environments — built-up, infrastructure, and forested areas — to assess accuracy, precision, spatial resolution, and vegetation penetration. The L3 introduces a single high-performance 1535nm laser with reduced beam divergence and increased pulse repetition rate, enabling higher point density and improved measurement quality. Results show significantly enhanced precision (cm-level), better strip alignment, and improved capability to resolve fine structures such as power lines. Residual analysis indicates reduced noise and tighter point distributions compared to L2. Furthermore, vegetation penetration is substantially improved, achieving up to 77% ground coverage compared to 48% for L2 in our experiment. Despite minor systematic offsets, the L3 demonstrates clear advantages in all tested aspects, confirming its suitability for high-resolution 3D mapping and representing an advancement in low-cost UAV LiDAR technology.
This study presents a unified calibration and performance assessment framework for 3-D scanning Doppler wind lidar (3-D DWL), combining plan position indicator (PPI) scanning with a dual-validation strategy based on cosine fitting and discrete Fourier transform (DFT) analysis; a high-precision rotating flywheel is empl...
Cai-Shi Zhang, Yuan Zhong, Yangqianyu Liu et al.· IEEE Transactions on Instrum...· 0 citations
Remote sensing is widely recognized as a key technology across a wide range of technical and scientific domains, especially in agriculture. Although satellite data have long supported crop monitoring, their limitations in spatial resolution, revisit frequency and cloud coverage have often constrained their applications...
Lorenza Bovio, Victor Miherea, Jannis Fath et al.· Geomatics· 0 citations
With the rapid development of unmanned aerial vehicle (UAV) technology, UAV mapping has been widely adopted in surveying production and smart city applications due to its cost-effectiveness and high efficiency. However, deploying ground control points (GCPs) remains labor-intensive and time-consuming. To address the li...
Tao Zhang, Xue-Cai Yu· International Conference on...· 0 citations
Unmanned aerial vehicle (UAV) photogrammetry offers a safe and efficient alternative to manual rock mass characterization in hazardous terrain. This study evaluates quality control measures, compares the discontinuity of accuracy data with and without Ground Control Points (GCPs), and performs kinematic a stability ana...
A. Albar, Mohd Mustaqim Mohd Nordin, Muhammad Zarith Sufi Shem Azman· Civil Engineering Dimension· 0 citations
LiDAR detection technology, characterized by high spatial resolution, strong directionality, and fast response, has become an important technical means for marine bathymetry, underwater target identification, interconnection of deep-sea nodes, and seabed environmental sensing. In recent years, with the development of h...
Weikang Wang, Gaoyue Liu, Xiyue Zhang et al.· International Conference on...· 0 citations
Light detection and ranging (LiDAR) have become a key enabling technology for autonomous driving and intelligent manufacturing. Conventional pulsed time-of-flight LiDAR suffers from an inherent trade-off between point acquisition rate (PAR) and nonambiguous range, which cannot satisfy the demands of long-distance hig...
