Based on the incoherent scatter theory of atmospheric turbulence

the turbulence spectrum is approximated by the Taylor method

and the relationship between the tropospheric scattering transmission loss and the atmospheric structure constant of the refractive index is obtained

that is

L-C model. The troposcatter propagation experiment was carried out

and the atmospheric structure constant of the refractive index during the test was predicted based on the numerical weather prediction model of WRF (Weather Research and Forecasting). Based on the forecasted data of the atmospheric structure constant of the refractive index

the L-C model is used to predict the troposcatter transmission loss

and compared with the measured loss. It is shown that the variation tendency of the predicted loss and the measured loss are in good agreement

and the RMS (root mean square) errors are no more than 6dB. On the other hand

the correlation coefficients between the transmission loss and the structure constant of the refractive index are all greater than 0.7. All of these show that there is indeed a strong correlation between troposcatter transmission loss and structure constant of the refractive index

and this correlation is of great value for the investigation of the mechanism and modeling on troposcatter transmission.