Title :
Very-short pulse propagation at millimetric wavelengths through the atmosphere
Author_Institution :
Radio Commun. Res. Univ., Rutherford Appleton Lab., Didcot, UK
Abstract :
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)
Keywords :
atmospheric electromagnetic wave propagation; electromagnetic wave absorption; polynomials; radiowave propagation; transfer functions; IEE Proc. H; absorptive atmosphere; atmospheric channel transfer function; broadening; chirp modulation; compression; millimetric wavelengths; mode frequency shift; truncated polynomial; very short pulse propagation;
Conference_Titel :
Antenna and Propagation Problems of Ultrawideband Radar, IEE Colloquium on
Conference_Location :
London
