A New Model for Predicting Troposcatter Transmission Loss and Propagation Delay Based on GPT2w

This letter proposes to construct a new model—RTBS_GPT2w based on the GPT2w (Global Pressure and Temperature 2 wet). In the new model, the pressure, temperature, and specific humidity is provided by the GPT2w. The 3D ray-tracing method is applied to calculate the propagation path and delay. The beam splitting and ray alignment approaches proposed in this letter are used to simulate the troposcatter process. Compared with existing models, the new model provides more detailed meteorological information and can accurately calculate the scattering, absorbing, bending and delaying effects of electromagnetic waves in the tropospheric atmosphere, thus obtain more accurate prediction results.