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Applied Optics

Applied Optics


  • Vol. 38, Iss. 24 — Aug. 20, 1999
  • pp: 5191–5194

Noise contributions for imaging spectrometers

Jens Nieke, Michael Solbrig, and Andreas Neumann  »View Author Affiliations

Applied Optics, Vol. 38, Issue 24, pp. 5191-5194 (1999)

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In the past decade imaging spectrometers for observation of the Earth were developed to use the complete information of a spectrum as a major tool in the study of physical and biological processes of the Earth. Instead of a few relatively broad spectral bands (line detector), this imager concept provides for the detection of many contiguous narrow spectral bands by applying the technology of matrix detectors. The change from one-dimensional to two-dimensional solid-state imagers makes it necessary to carry out the specific signal-to-noise ratio (SNR) analysis of such detectors. A simulation of maximum and minimum radiances for typical spectral signatures of the Earth (water, vegetation) and the verification of these radiances with modular optoelectronic scanner data provide the means for calculation of electrons generated at the matrix detector. For a hypothetical sensor, water-minimum and vegetation-maximum signals are calculated, and the degradation of the SNR caused by image smear of two-dimensional solid-state imagers is demonstrated.

© 1999 Optical Society of America

OCIS Codes
(040.1240) Detectors : Arrays
(110.4280) Imaging systems : Noise in imaging systems
(120.5630) Instrumentation, measurement, and metrology : Radiometry
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(280.0280) Remote sensing and sensors : Remote sensing and sensors

Original Manuscript: September 22, 1998
Revised Manuscript: March 15, 1999
Published: August 20, 1999

Jens Nieke, Michael Solbrig, and Andreas Neumann, "Noise contributions for imaging spectrometers," Appl. Opt. 38, 5191-5194 (1999)

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  1. J. Nieke, H. Schwarzer, A. Neumann, G. Zimmermann, “Imaging spaceborne and airborne sensor systems in the beginning of the next century,” in Sensors, Systems, and Next-Generation Satellites, H. Fujisada, ed., Proc. SPIE3221, 581–592 (1997). [CrossRef]
  2. G. Zimmermann, A. Neumann, “Imaging spectrometer for ocean remote sensing,” in Proceedings of the International Symposium of the International Academy of Astronautics (IAA), H. P. Röser, R. Sandau, A. Valenzuela, eds. (Walter de Gruyter, Berlin, 1996), pp. 119–122.
  3. C. Hofmann, Die optische Abbildung (Geest & Portig, Leipzig, Germany, 1980), Chap. 3, p. 113.

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