MEASUREMENT OF THE TIME-VARYING COMPONENT OF RADIATION FROM INFRARED SOURCES

Abstract

Techniques for the calibration of a temporal radiometer were studied. The calibration described for either periodic or random fluctuations utilizes sinusoidally modulated radiation from a blackbody. A complete description is given of the data acquisition and analysis facilities which were assembled for this study and used to calibrate a test radiometer. The practical aspects of spectral analysis (including the interplay among filter bandwidth, scan rate, data sample length, and averaging time) are discussed, and a technique for measuring the noise equivalent bandwidth of the frequency-selective filter in the spectrum analyzer is described.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1968
Accession Number
AD0669833

Entities

People

  • C. L. Roe
  • E. C. Hall
  • M. L. Fecteau

Organizations

  • University of Michigan

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Sensors
  • Space

DTIC Thesaurus Topics

  • Analyzers
  • Bandwidth
  • Calibration
  • Data Acquisition
  • Department Of Defense
  • Detectors
  • Frequency
  • Frequency Response
  • Infrared Radiation
  • Instrumentation
  • Measurement
  • Oscillators
  • Power Spectra
  • Radiation
  • Radiometers
  • Spectra
  • Spectrum Analyzers

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Image Processing and Computer Vision.
  • Radar Systems Engineering.