Title :
Frequency response of turbulent tropospheric radiochannel overlain the terrestrial surfaces
Author :
Andreyev, G.A. ; Ogarev, S.A. ; Khokhlov, G.I.
Author_Institution :
Inst. of Radioeng. & Electron., Acad. of Sci., Moscow, Russia
fDate :
June 28 1993-July 2 1993
Abstract :
The authors present a mathematical description and work out a numerical analysis of the frequency response functions of the turbulent atmospheric radiochannel in the millimeter-wave band, taking into account the impact of the roughness of underlying terrestrial surfaces. It was theoretically shown and experimentally confirmed at /spl lambda/=2.2 mm that underlying angles over the terrestrial surface exceeding 6/spl deg/, an interference structure becomes disrupted, and the radiochannel transmission band closely corresponds to millimeter-wave of free space. Within a distance of several km with heights of corresponding points of 10-15 m, an interference structure of millimeter-wave field is retained. The radiochannel transmission band encompasses 1000 MHz and tends to broaden when the transmitter antenna height is scaled down.<>
Keywords :
atmospheric turbulence; electromagnetic wave scattering; frequency response; millimetre wave propagation; telecommunication channels; tropospheric electromagnetic wave propagation; 10 to 15 m; frequency response functions; interference structure; millimeter-wave band; numerical analysis; terrestrial surfaces; turbulent atmospheric radiochannel; Fluctuations; Frequency response; Fresnel reflection; Interference; Millimeter wave communication; Millimeter wave propagation; Performance analysis; Performance evaluation; Rough surfaces; Surface roughness;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1993. AP-S. Digest
Conference_Location :
Ann Arbor, MI, USA
Print_ISBN :
0-7803-1246-5
DOI :
10.1109/APS.1993.385157
