Predicting Signal Strength for Ground Mobile Systems Using Propagation Models

This propagation model is grounded in field measurements, using median field strength or path loss in quasi-flat terrain and large urban areas as reference benchmarks. It incorporates correction factors to account for diverse propagation environments and terrain variations, enabling accurate prediction of ground mobile system signal strength. The model operates within the 150MHz to 1000MHz UHF/VHF frequency spectrum, with primary application in the 800-900MHz band where the Okumura-Hata propagation model is typically implemented for relatively flat regions. The Hata model delivers analytical approximations of empirical data while effectively capturing dominant influencing factors. Implementation typically involves calculating base path loss using Hata's equations: Lp = A + B log10(d) + C, where d represents distance, with coefficients A, B, and C adjusted for urban/suburban/rural environments. Additional correction factors can be programmatically applied through conditional statements checking terrain profiles and vegetation density. The model's framework also supports signal strength evaluation for other frequency bands and terrain conditions through parameter customization and validation against measurement data.