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Retrieval of ultraviolet spectral irradiance from filtered photodiode measurements
Centro de Astrobiología (CSIC-INTA).
Departamento de Matem´atica Aplicada, Facultad de Informatica, Universidad Complutense de Madrid.
Departamento de Matemática Aplicada a las TT.II., E.T.S.I.T., Universidad Politécnica de Madrid.
2009 (English)In: Inverse Problems, ISSN 0266-5611, E-ISSN 1361-6420, Vol. 25, no 11, 115023Article in journal (Refereed) Published
Abstract [en]

We derived a general purpose method to retrieve the ultraviolet (UV) spectral irradiance using filtered photodiodes. The algorithm retrieves through an iterative process, which is based on the application of the mean value theorem, the six unknown coefficients of an interpolating polynomial function of order 5. For illustration we retrieve the incident spectral irradiance of three representative study cases. We consider the output currents induced on six SiC filtered photodiodes by a D2 lamp in vacuum, by the same lamp with ozone absorption and by a Martian-like solar spectrum. The algorithm converges to an interpolating function that reproduces the spectrum within the range of response of the photodiodes and with an integral error <0.6% for each channel for the vacuum D2 spectrum. Since two photodiodes are centered on the ozone absorption band, this method successfully detects ozone absorption and estimates its ambient terrestrial concentration with <4% error. This algorithm will be used to retrieve the Martian surface incident spectrum with REMS UV photodiodes on board the MSL Rover mission (NASA). This method can be equivalently used with commercial photodiodes for other applications where an inexpensive, small and light detector is preferred to conventional spectroradiometers.

Place, publisher, year, edition, pages
2009. Vol. 25, no 11, 115023
National Category
Aerospace Engineering
Research subject
Human Work Science
Identifiers
URN: urn:nbn:se:ltu:diva-64493DOI: 10.1088/0266-5611/25/11/115023Scopus ID: 2-s2.0-70450175727OAI: oai:DiVA.org:ltu-64493DiVA: diva2:1115027
Available from: 2017-06-26 Created: 2017-06-26 Last updated: 2017-06-26Bibliographically approved

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Zorzano, María Paz
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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf