Progress on the Validation of Short-Distance, Ground-to- Ground Propagation Models at VHF Frequencies
- K. Chamberlin, M. Khankin, A. Barrios
- Joint IEEE APS/URSI North American Radio Science…
Develop an advanced unified hybrid radio propagation model based on parabolic equation and rayoptics methods for both surface-based and airborne applications. This model is named the Advanced Propagation Model (APM) and is the model used in the Advanced Refractive Effects Prediction System (AREPS). Complete analysis of radio signal strength measurements from NOAA radio transmitters and compare with APM predictions for low altitude mobile radio applications over land. The results will be documented in an open literature publication. Other objectives are to evaluate the Janaswamy model for use in APM; integrate it into APM as required, and continue efforts to modify APM (or develop a new model) to allow finer height resolution to improve resolution of the surface wave.