CALCULATED TROPOSPHERIC DISPERSION AND ABSORPTION DUE TO 22-GHZ WATER VAPOR LINE

被引：24
作者：
LIEBE, HJ
机构：
[1] Tropospheric Radio Physics Group Institute for Telecommunication Sciences, Environmental Science Services Administration, Boulder
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 1969年 / AP17卷 / 05期
关键词：
D O I：
10.1109/TAP.1969.1139521
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
To evaluate the complex transmission factor for the troposphere in the 15- to 35-GHz region, the dispersion and attenuation caused by the isolated molecular resonance of water vapor at 22.235 GHz were calculated. The spectroscopic param-eters have been previously determined at low pressures (<20 torr) under controlled laboratory conditions with a microwave dispersometer. The computation takes into account the gas com-position, pressure, and temperature. Examples for two standard atmospheres and a vertical path model are given. Three theoretical frequency profiles appropriate for a pressure-broadened line are compared with reported measurements, and discrepancies are discussed. Copyright © 1969 by The Institute of Electrical and Electronics Engineers, Inc.
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页码：621 / &
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