METHOD OF DETERMINING ATMOSPHERE TRANSPARENCY Russian patent published in 2010 - IPC G01W1/00 G01W1/04 

FIELD: physics.

SUBSTANCE: probing light pulses are generated in equidirectional collinear directions from operating locations of two transceivers, e.g. lidars which are spaced out in the direction of the packets and displaced from this direction by a distance which does not exceed dimensions of the transceiver. Echo signals are received at transmission points from the scattering volume of the atmosphere and power of these signals is measured. Transparency of the atmosphere, as applied to the section bordered by transmission points, is determined from the power of the said signals using formulas. Also power of the radiation scattered by the atmosphere in the direction opposite the direction of transmission of probing pulses is measured. Transmission of these pulses from the transceivers is done successively with delay time which exceeds reception duration of the echo signals. In the measurement process, the distance between location points of the transceivers is pre-measured. The measurement procedure is repeated up to a given level of coincidence of results of determining transparency from power of echo signals, as well as from the overall power of echo signals and pre-measurement of the power of radiation scattered by the atmosphere.

EFFECT: more accurate determination due to taking into account influential physical factors.

3 cl, 2 dwg