FIELD: physics.
SUBSTANCE: light pulses are sent into the atmosphere from points spread in space on crossing probing paths passing in noncollinear directions. Echo signals are received at sending points; light pulses are sent on additional paths, each crossing all previous paths. The total number of paths is not less than five. Characteristics of the atmosphere are determined from the power of said signals using calculation formulae.
EFFECT: high accuracy of determination due to correct accounting for atmospheric background illumination.
1 dwg
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