Demonstration of an algorithm for read-noise reduction in infrared arrays

A. M. Fowler, Ian Gatley

Research output: Contribution to journalArticlepeer-review

122 Scopus citations


We describe a straightforward "multiple-read" software algorithm which reduces the read noise of a state of the art infrared array detector - the Santa Barbara Research Corporation (SBRC) 58 × 62 InSb array - by a factor of order 5. We demonstrate this gain in performance directly in a low-background application using the KPNO Infrared Grating Spectrometer (CRSP) for a measurement of vibrationally excited molecular hydrogen emission from the proto-planetary nebula CRL 2688. We anticipate that the noise reduction scheme described here may be generally applicable to present-day infrared arrays.

Original languageEnglish (US)
Pages (from-to)L33-L34
JournalAstrophysical Journal
Issue number1 PART 2
StatePublished - Apr 10 1990
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


  • Image processing
  • Infrared: general


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