Radiometric Calibration of an Inexpensive LED-Based Lidar Sensor

• DOI: 10.3390/s20185215
• Publication Date: 2020-09-14T01:11:32Z
• Authors: Jordan Laughlin; Preston Hartzell; Craig Glennie; Jan W. Kovermann
• Keywords: Radiometric Calibration; Ranging; SIGNAL (programming language); Radiometry

Radiometric calibration of laser-based, topographic lidar sensors that measure range via time flight or phase difference is well established. However, inexpensive, short-range utilize non-traditional ranging techniques, such as indirect flight, may report radiometric quantities are not appropriate for existing methods. One sensor the TeraRanger Evo 60 m by Terabee, whose reported amplitude measurements do vary smoothly with amount return signal power. We investigate performance a new model, one based on neural network, applied to m. The proposed model found perform similarly those traditional sensors, root mean square errors in predicted target reflectance no more than ±6% non-specular surfaces. provides generic approach be applicable other low-cost amplitudes proportional and reflectance.