Ocean Remote Sensing With A Charge Injection Device (CID) Array

S. E. Stewart; R. R. Buntzen

doi:10.1117/12.943308

27 September 1984 Ocean Remote Sensing With A Charge Injection Device (CID) Array

S. E. Stewart, R. R. Buntzen

Proceedings Volume 0489, Ocean Optics VII; (1984) https://doi.org/10.1117/12.943308
Event: Ocean Optics VII, 1984, Monterey, United States

Abstract

Ocean optical data has been remotely collected using the Advanced Solidstate Array Spectroradiometer (ASAS). ASAS is a multispectral pushbroom scanner with 32 channels extending from 400 to 850 nm. It is built around a 32 by 512 element charge injection device (CID) array with enhanced sensitivity in the blue. Twelve-bit digital output with variable gain and offset in the pre-amp and low system noise give this scanner the ability to pick up low level subsurface upwelling light from the ocean. The scanner was built by General Electric and the NASA Johnson Space Center with optics from TRW under a Naval Ocean Systems Center program for ocean remote sensing. It was first flown with the detector uncooled in September of 1983 at the Naval Coastal Systems Center in Panama City, Florida. Preliminary analysis of the data indicates a signal-to-noise ratio of at least 200 to 1. Subsequent image processing and refinements in the scanner hardware promise to improve this figure significantly. Details of the scanner design, calibration, and noise reduction will be presented. The scan-ner's potential for use in shallow water bottom mapping and chlorophyll determination will be discussed. Fi-nally, projected improvements in the scanner and its performance will be described.

Citation Download Citation

S. E. Stewart and R. R. Buntzen "Ocean Remote Sensing With A Charge Injection Device (CID) Array", Proc. SPIE 0489, Ocean Optics VII, (27 September 1984); https://doi.org/10.1117/12.943308

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KEYWORDS

Calibration

Sensors

Scanners

Remote sensing

Ocean optics

Signal to noise ratio

Data storage

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