EXPERIMENTAL STUDY PROGRAM TO INVESTIGATE LIMITATIONS IN FOURIER SPECTROSCOPY

Abstract

Fourier spectrometry is at a disadvantage compared to conventional scanners insofar as larger dynamic range is required for recording and/or transmitting the signal. Various procedures for minimizing the disadvantage are evaluated. A simulated experimental comparison is made between signal compression techniques and chirping (distribution of the central fringes of an interferogram). The comparison yields approximately a 15 dB improvement for both procedures, though each leave somewhat different residual distortions of the spectrum. The emphasis is given to the chirping procedure, since this is less well known, and ascendence over its problems provides greater insight into Fourier spectrometry.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1968
Accession Number
AD0665890

Entities

People

  • Isaiah Coleman
  • Lawrence N. Mertz

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Character Recognition
  • Compression
  • Computations
  • Data Reduction
  • Dynamic Range
  • Frequency
  • Materials
  • Measurement
  • Numbers
  • Phase Shift
  • Simulations
  • Spectra
  • Spectrometry
  • Transfer Functions
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Image Processing and Computer Vision.
  • Optical Physics and Photonics.
  • Systems Analysis and Design