Handbook on Radiometeorology 2013

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The Handbook on Radiometeorology supplies background and supplementary information on radiowave propagation effects as described and used in the ITU-R P series of Recommendations thus giving a more detailed understanding of these Recommendations, in particular to those who wish to contribute to their development.



Cross-polarization and anisotropy

By using orthogonal polarizations, two independent information channels using the same carrier frequency can be transmitted over a single link. While the orthogonally polarized channels are completely isolated in theory, some degree of interference between them is unavoidable owing to the non-perfect polarization characteristics of the antennas and depolarizing effects on the propagation path. The main sources of this cross-polarization at centimetre and millimetre wavelengths are hydrometeor absorption and scattering.


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