A study of tropospheric scattering model based on coherent source-induced atmospheric refractivity fluctuation

摘要

The physical mechanism of generating the lasting tropospheric refractivity fluctuation with stable array-distributed structure by coherent acoustic waves is investigated. Based on the array antenna principle, a more accurate refractive index fluctuation model considering the phase shift effect of the sound source array is established, and structure of the artificial dielectric irregularities is simulated and analyzed. The refractive index distribution of tropospheric scatter communication links is found to be stratified, which lays a foundation for the calculation of tropospheric scattering.