Radio Signal Propagation Models in Urban Area

U ovom radu su opisani elektromagnetski valovi sa svojim elementima i karakteristikama, prostiranje EM valova iznad različitih tipova terena te su obrađeni najpoznatiji empirijski propagacijski modeli. Uspoređivani su rezultati za modele COST231-Hata, Ericsson i ITM ( Longley and Rice ). Zbog velikih razlika u dobivenim rezultatima pokrivenosti područja, nismo išli u dublju usporedbu no smatramo da za konfiguraciju terena u primorskim sredinama, u kakvu spada i Dubrovnik, najbolje odgovara ITM propagacijski model.This work describes electromagnetic waves with their elements and properties, spreading of EM waves above different types of terrain and the most famous empirical propagation models are processed. The results for the COST231-Hata, Ericsson and ITM ( Longley and Rice ) models have been compared. Due to the large differences in the results of area coverage, we didn’t do any deeper comparison, but we consider that the configuration of terrain in coastal areas, such as Dubrovnik, is best suited to the ITM propagation model