Open AccessTDT DVB-T2 signal coverage in rural zones
Author(s) -
Diana Acosta-Peña,
Elvis E. Gaona-García,
Juan Pablo Oviedo-Perdomo
Publication year - 2018
Publication title -
visión electrónica/visión electrónica
Language(s) - English
Resource type - Journals
eISSN - 2248-4728
pISSN - 1909-9746
DOI - 10.14483/22484728.18395
Subject(s) - ultra high frequency , radio propagation , range (aeronautics) , mean squared error , computer science , statistics , standard deviation , algorithm , telecommunications , mathematics , engineering , aerospace engineering
This paper analyzes the Digital Terrestrial Television (DTT) signal coverage in the department of Cundinamarca, comparing two propagation models: Okumura-Hata, and Stanford University Interim (SUI). These models were selected because they allow the calculation of propagation losses in the UHF band and do not require greater precision in the cartographic information to estimate diffraction losses. As a result, was obtained that the selected models are close to the field measurements, in a range of 8 to 12 dB. In addition, adjustments were made to the propagation models obtaining the losses estimation in the signal propagation. The models were evaluated applying statistical criteria such as: correlation coefficient, mean square error and standard deviation. Finally, it was determined that the two models fit easily to the values obtained in the field measurements; however, the difference presented by the Okumura-Hata model was smaller in comparison with the SUI model; but the latest one allowed a better fit to the propagation model than the Okumura-Hata model.