Coastal shallow waters explorer imaging spectrometer for aerial remote sensing of shallow waters in UV-VIS-NIR broadband

摘要

Advancements in technology have widened the limits of hyperspectral imaging of remote sensing in mapping shallow water benthic habitats and bathymetry. This paper provides a novel airborne imaging spectrometer for the field. The device, composed of an off-axis two-mirror telescope and an advanced Dyson spectrometer working in the ultraviolet-visible near-infrared region, has been designed, fabricated, and evaluated. It maintained high optical performance, with a pixel spatial resolution better than 0.5 mrad, spectral resolution of 3.5 nm, field of view of 28 degrees, and a high numerical aperture for high SNR in 330-900 nm. The imaging spectro meter will help to obtain a combination of the spectral and textural characteristics of bottom features in shallow waters. These features could result in the ability to map habitats over large coastal systems. (C) 2021 Optical Society of America