Optical Design and Engineering

Landsat swath imaging spectrometer design

[+] Author Affiliations
Pantazis Mouroulis, Robert O. Green, Byron Van Gorp, Lori B. Moore, Daniel W. Wilson, Holly A. Bender

Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, California 91109, United States

Opt. Eng. 55(1), 015104 (Jan 26, 2016). doi:10.1117/1.OE.55.1.015104
History: Received September 29, 2015; Accepted December 17, 2015
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Abstract.  This paper describes the design of a high-throughput and high-uniformity pushbroom imaging spectrometer and telescope system that is capable of Landsat swath and resolution while providing better than 10 nm per pixel spectral resolution over the full visible to short-wave infrared band. The design is based on a 3200×480  element×18  μmpixel size focal plane array, two of which are utilized to cover the full swath. At an optical speed of F/1.8, the system is the fastest proposed to date to our knowledge. The utilization of only two Dyson-type spectrometer modules fed from the same telescope reduces system complexity while providing a solution within achievable detector technology. Two telescope designs are shown to achieve the required swath and resolution from different altitudes. Predictions of complete system response are shown. Also, it is shown that detailed ghost analysis is a requirement for this type of spectrometer and forms an essential part of a complete design.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Pantazis Mouroulis ; Robert O. Green ; Byron Van Gorp ; Lori B. Moore ; Daniel W. Wilson, et al.
"Landsat swath imaging spectrometer design", Opt. Eng. 55(1), 015104 (Jan 26, 2016). ; http://dx.doi.org/10.1117/1.OE.55.1.015104


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