Economic and Environmental Geology

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Fig. 1.

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Fig. 1. (a) Picture of Riegl VZ-400i LiDAR and photogrammetry system. (b) Schematic diagram of time-of-flight ranging method.
The distances (d1 and d2) between the measuring location and the targets (i.e., tree and building) are computed using the arrival times
(t1 and t2) of the corresponding echo signals. Here c is the speed of light.
Econ. Environ. Geol. 2021;54:177-86 https://doi.org/10.9719/EEG.2021.54.2.177
© 2021 Econ. Environ. Geol.