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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 72, Iss. 6 — Jun. 1, 1982
  • pp: 760–764

Theoretical analysis of the high-order irradiance moments of light waves observed in turbulent air

Shigeo Ito and K. Furutsu  »View Author Affiliations

JOSA, Vol. 72, Issue 6, pp. 760-764 (1982)

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The high-order irradiance moments recently measured in turbulent air up to the fifth order in connection with the K distribution are compared with previous theory based on a cluster expansion of the irradiance moments mv = 〈Iv〉/〈Iv, V = 1, 2, 3,.... Good agreement is confirmed over the entire observed range 0.1 ≲ σI2〈I〉2 ≲ 6 of the normalized variance of irradiance σI2/〈I2, including the regions of both unsaturated and saturated scintillations. Also shown are the theoretical curves of the mean and the variance of the log-amplitude, and good consistency is found with values of previous experiments made exclusively in terms of the log-amplitude and also of recent experiments made simultaneously on both log-amplitude and irradiance. The K distribution fits the experimental results of the mv values well within the range σI2/〈I2≲2 but definitely fails to fit those of the mean and the variance of the log-amplitude.

© 1982 Optical Society of America

Shigeo Ito and K. Furutsu, "Theoretical analysis of the high-order irradiance moments of light waves observed in turbulent air," J. Opt. Soc. Am. 72, 760-764 (1982)

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