Naslov
Assessment of Giovaneli's Contribution to a Multiple Diffraction Losses Prediction

Autori
Marinović, Ivan ; Zanchi, Igor ; Blažević, Zoran

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
SoftCOM 1998. / Rožić, Nikola ; Begušić, Dinko ; Pavelin, Ivan ; Burmaz, Branimir - Split : Fakultet elektrotehnike, strojarstva i brodogradnje Sveučilišta u Splitu, 1998, 477.-484.

Skup
INTERNATIONAL CONFERENCE ON SOFTWARE IN TELECOMMUNICATIONS AND COMPUTER NETWORKS

Mjesto i datum
Bari, Italija; Dubrovnik, Hrvatska; Split, Hrvatska, 14.10.1998. - 17.10.1998

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Multiple diffraction; Giovaneli's model; Deygout's model

Sažetak
The simplest model for the prediction of diffraction losses in radio communications is based upon application of Fresnel’s diffraction theory. Diffraction losses are defined by multiple Fresnel integral which, except in the case of two obstacles, may be solved by numerical method acc. to Vogler. This method requires a computer application. However, widely accepted approximate methods are using procedures for reduction on equivalent number of single diffractions. The well known is procedures according to Bullington, Epstein-Peterson and Deygout, with certain improvements (Japanese method and Giovaneli˘s model). Taking into consideration computed results of diffraction losses calculated by Vogler’s numerical method, as reference one, it is evident that approximate Deygout's model gives the best results. However, with certain configuration of diffraction obstacles on radio path, Deygout's result may be considerably improved by introduction of Giovaneli˘s correction. The intention of this work is to give an improvement assessment of results obtained by application of Giovaneli˘s correction as the function of geometric disposition of diffraction obstacles.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA