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Performance comparison of aperture codes for multimodal, multiplex spectroscopy.

Publication ,  Journal Article
Wagadarikar, AA; Gehm, ME; Brady, DJ
Published in: Applied optics
August 2007

We experimentally evaluate diverse static independent column codes in a coded aperture spectrometer. The performance of each code is evaluated based on the signal-to-noise ratio (SNR), defined as the peak value in the spectrum to the standard deviation of the background noise, as a function of subpixel vertical misalignments. Among the code families tested, an S-matrix-based code produces spectral reconstructions with the highest SNR. The SNR is least sensitive to vertical subpixel misalignments on the detector with a Hadamard-matrix-based code. Finally, the increased sensitivity of a spectrometer using a coded aperture instead of a slit is demonstrated.

Duke Scholars

Published In

Applied optics

DOI

EISSN

1539-4522

ISSN

1559-128X

Publication Date

August 2007

Volume

46

Issue

22

Start / End Page

4932 / 4942

Related Subject Headings

  • Spectrum Analysis
  • Spectrophotometry
  • Software
  • Signal Processing, Computer-Assisted
  • Reproducibility of Results
  • Refractometry
  • Optics
  • Models, Theoretical
  • Models, Statistical
  • Image Interpretation, Computer-Assisted
 

Citation

APA
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ICMJE
MLA
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Wagadarikar, A. A., Gehm, M. E., & Brady, D. J. (2007). Performance comparison of aperture codes for multimodal, multiplex spectroscopy. Applied Optics, 46(22), 4932–4942. https://doi.org/10.1364/ao.46.004932
Wagadarikar, Ashwin A., Michael E. Gehm, and David J. Brady. “Performance comparison of aperture codes for multimodal, multiplex spectroscopy.Applied Optics 46, no. 22 (August 2007): 4932–42. https://doi.org/10.1364/ao.46.004932.
Wagadarikar AA, Gehm ME, Brady DJ. Performance comparison of aperture codes for multimodal, multiplex spectroscopy. Applied optics. 2007 Aug;46(22):4932–42.
Wagadarikar, Ashwin A., et al. “Performance comparison of aperture codes for multimodal, multiplex spectroscopy.Applied Optics, vol. 46, no. 22, Aug. 2007, pp. 4932–42. Epmc, doi:10.1364/ao.46.004932.
Wagadarikar AA, Gehm ME, Brady DJ. Performance comparison of aperture codes for multimodal, multiplex spectroscopy. Applied optics. 2007 Aug;46(22):4932–4942.

Published In

Applied optics

DOI

EISSN

1539-4522

ISSN

1559-128X

Publication Date

August 2007

Volume

46

Issue

22

Start / End Page

4932 / 4942

Related Subject Headings

  • Spectrum Analysis
  • Spectrophotometry
  • Software
  • Signal Processing, Computer-Assisted
  • Reproducibility of Results
  • Refractometry
  • Optics
  • Models, Theoretical
  • Models, Statistical
  • Image Interpretation, Computer-Assisted