Ocean PHILLS Hyperspectral Imager: Design, Characterization, and Calibration
NAVAL RESEARCH LAB WASHINGTON DC REMOTE SENSING DIV
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The Ocean Portable Hyperspectral Imager for Low-Light Spectroscopy Ocean PHILLS is a hyperspectral imager specifically designed for imaging the coastal ocean. It uses a thinned, backside illuminated CCD for high sensitivity and an all-reflective spectrograph with a convex grating in an Offner configuration to produce a nearly distortion free image. The sensor, which was constructed entirely from commercially available components, has been successfully deployed during several oceanographic experiments in 1999-2001. Here we describe the instrument design and present the results of laboratory characterization and calibration. We also present examples of remote-sensing reflectance data obtained from the LEO-15 site in New Jersey that agrees well with ground-truth measurements.
- Atomic and Molecular Physics and Spectroscopy
- Physical and Dynamic Oceanography