Research and calculate the theory of laser pulse energy for water observation equipment
120 viewsDOI:
https://doi.org/10.54939/1859-1043.j.mst.FEE.2023.111-118Keywords:
Underwater vision devices; Pulsed lasers; Range-gated underwater laser imaging.Abstract
In this paper, the results of the theoretical calculation of laser pulse illumination energy of underwater observation equipment were presented. Using a simulation of environmental conditions, observed objects, parameters of laser pulse width, repetition frequency and optical objective system to obtain images, thereby determining the laser pulse energy depending on the distance. Specifically, the results had shown that to achieve human target detection distance of up to 30 m and identification to 27 m, it is necessary to use a laser with a pulse energy of at least 5 mJ (with a pulse width of 3 ns and frequency of 1kHz). This result ensures the selection of suitable laser pulse illumination energy for underwater observation equipment according to the requirement of target observation distance.
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