Laser radar for upper atmosphere Rayleigh scattering wind-temperature detection

The utility model discloses laser radar for upper atmosphere Rayleigh scattering wind-temperature detection, which is used for upper atmosphere detection. The laser radar consists of a laser emitting unit (1), a receiving telescope (2), an optical fiber (3), a frequency discrimination unit (4) and a data collecting and processing unit, wherein the output frequency of laser emission adopts the atomic absorption frequency stabilization; and the frequency discrimination unit adopts the three channels of a same atom to carry out the frequency discrimination, so as to obtain the intensities of the full spectrum, the left peripheral spectrum and the right peripheral spectrum of an echo wave spectrum respectively for the simultaneous acquisition of the density, temperature and wind field of the atmosphere. The utility model has the advantages of strong background light suppressing capability, high frequency discrimination precision, small detection error and stable and reliable working.