Millimeter-wave antenna noise temperature due to rain clouds: theoretical model and statistical prediction
Konferenz: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
23.03.2009 - 27.03.2009 in Berlin, Germany
Tagungsband: EuCAP 2009
Seiten: 5Sprache: EnglischTyp: PDFPersönliche VDE-Mitglieder erhalten auf diesen Artikel 10% Rabatt
Marzano, Frank Silvio (DIE, Sapienza University of Rome, Via Eudossiana, 18, 00184 Rome, Italy)
Marzano, Frank Silvio; Montopoli, Mario (DIEI and CETEMPS, University of L’Aquila, Poggio di Roio, 67040 L’Aquila, Italy)
Model-oriented methods to predict antenna noise temperature due to rainfall along slant paths are developed and illustrated for communication systems at Ka band and above. The adopted Sky Noise Eddington Model (SNEM) relies on an accurate analytical solution of the radiative transfer equation and on stratiform and convective rainfall stratified structures, synthetically generated from cloud-resolving model statistics. The approach to predict antenna noise temperature is based on the multiple regression analysis, trained by SNEM-derived cloud radiative datasets. In order to test the proposed prediction technique, measurements of the ITALSAT satellite groundstation at Pomezia (Rome, Italy) are taken into consideration for 2 case studies. Combined data from the ITALSAT three-beacon receiver at 18.7, 39.6 and 49.5 GHz and from a three-channel microwave radiometer at 13.0, 23.8 and 31.6 GHz are processed and discussed.