Prediction of overall atmospheric MTF with standard weather parameters: Comparison with measurements with two imaging systems

S. Shamriz, I. Sasson, D. Sadot, I. Dror, N. S. Kopeika

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations

Abstract

Overall atmospheric modulation transfer function (MiT) is essentially the product of turbulence and aerosol MTF. Models describing meteorological dependences of both Cn2 and coarse aerosol size distribution have been developed previously. Here, they are used to predict turbulence MiT, aerosol MTF, and overall atmospheric MTF according to weather. Comparison of predictions to measurements yields very high correlations and suggests that such prediction models can also be very useful in image restoration based on weather data at the time and general location in which the image was recorded. An interesting aspect of this work is that measurements of aerosol MTF with different imaging instrumentation are very different, as expected from theory developed previously concerning the practical aerosol MTF actually recorded in the image. This is dependent upon instrumentation parameters. This experimental verification supports the model that the "practical" aerosol MiT is very dependent upon instrumentation.

Original languageEnglish
Pages (from-to)122-134
Number of pages13
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume2471
DOIs
StatePublished - 15 Jun 1995
EventAtmospheric Propagation and Remote Sensing IV 1995 - Orlando, United States
Duration: 17 Apr 199521 Apr 1995

Keywords

  • Aerosol MiT
  • Aerosols
  • Atmospheric optics
  • Image restoration
  • Turbulence
  • Weather

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