Very-short pulse propagation at millimetric wavelengths through the atmosphere

A technique first developed by Forrer (1958), in which the atmospheric channel transfer function is approximated by a truncated polynomial function of frequency, has been extended (IEE Proc. H vol.137, p.304-10 of 1990) to include both absorption and dispersion at these wavelengths. The technique has been used to examine a variety of broadening or compression, the shift in mode frequency of the received pulse, and the superposition of a modulation (or 'chirp' frequency).<
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