FIELD: measuring technology.
SUBSTANCE: invention relates to remote sensing of the atmosphere and can be used in lidars to determine the structural constant of turbulent fluctuations of the refractive index of air in the atmosphere. In the design of coherent wind lidars, in addition to the monostatic transceiver channel, a bistatic receiving channel is introduced, with the same input aperture, but shifted in the receiving plane by a distance ensuring uncorrelation of probing and scattered radiation on the sounding path, and a calculator for calculating the ratio of average echo signal powers recorded in mono and bistatic channels. Comparison of the experimental values of the ratio of the average power of echo signals in mono- and bistatic channels obtained by the calculator with the theoretical dependences of this ratio on the structural constant of optical turbulence calculated for lidar parameters ensures the determination of the structural constant of turbulent fluctuations of the refractive index of air in the atmosphere.
EFFECT: invention makes it possible to measure the optical (temperature) turbulence in the atmosphere.
1 cl, 5 dwg
