Title :
Comparison of different methodologies for the computation of ground conductivity in Brazil
Author :
Rodrigues, M.E.C. ; Campos, A.L.P.S. ; Leao, A.H.F.F. ; Medeiros, D.D.D.
Author_Institution :
Dept. of Commun. Eng., Fed. Univ. of Rio Grande do Norte (UFRN), Natal, Brazil
Abstract :
This paper describes the calculation of the average ground conductivity from electric field measurements on MF frequency band carried out in Rio Grande do Norte state, Brazil. This effort aims to provide accurate information on the ground conductivity, which is a key parameter related to digital broadcast system planning at frequencies below 30 MHz. Two prediction models are analyzed. One of them is fully described by Norton and Van der Pol formulations and the other one has more input parameters, intended for urban use. Measurements were performed at 1090 kHz.
Keywords :
digital radio; electric field measurement; electrical conductivity measurement; Brazil; MF frequency band; Norton formulation; Van der Pol formulation; digital broadcast system planning; electric field measurements; frequency 1090 kHz; ground conductivity; prediction models; Antenna measurements; Antennas and propagation; Buildings; Computational modeling; Conductivity; Electric fields; Predictive models; ITU-R P.832; MF wave; analog systems; digital radio systems; ground conductivity;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
