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Further results on the range gating technique: Visibility in sea water

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Abbreviations

R :

Light radiance at the observation point

R peak :

Peak amplitude of useful light radiance

r a :

radius of the sphere in which propagation takes place; also, distance of schematic scene from the observer

RET:

=ct/r a-1, i.e. relative excess time spent by scattered light (with respect to unscattered) to reach the observer

t :

time elapsed from the instant of light pulse emission by the source

ϑ a :

angular co-ordinate of a point on the spherical collecting surface; it is evaluated with respect to the direction of the elementary δ-source

IS:

illuminated scene case: the scene is illuminated by a source placed near the observer

RS:

rastered scene case: a TV-like scanning of the scene by a narrow light beam is performed, and combined with a gating of the detector

SL:

self-luminous scene case: the scene is either self-luminous or illuminated by a source close to it.

References

  1. S. Donati andA. Sona,Opto-electronics 1 (1969 89–101.

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  2. S. Q. Duntley,J. Opt. Soc. Amer. 53 (1963) 214–233.

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  3. P. Heckman Jr. andR. T. Hodgson,IEEE J. Quantum Electronics QE-3 (1967) 445–448.

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Authors and Affiliations

  1. Laboratori CISE, Segrate, Milano, Italy

    S. Donati & A. Sona

Authors
  1. S. Donati
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  2. A. Sona
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Donati, S., Sona, A. Further results on the range gating technique: Visibility in sea water. Opto-electronics 1, 155–159 (1969). https://doi.org/10.1007/BF01419277

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  • DOI: https://doi.org/10.1007/BF01419277

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