Calibration procedure of a microwave total-power radiometer

被引：9
|
作者：
Al-Ansari, K [1 ]
Garcia, P [1 ]
Riera, JM [1 ]
Benarroch, A [1 ]
Fernandez, D [1 ]
Fernandez, L [1 ]
机构：
[1] Univ Politecn Madrid, ETSI Telecomunicac, Madrid, Spain
来源：
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2002年 / 12卷 / 03期
关键词：
millimeter wave propagation; radiometer calibration; radiometry;
D O I：
10.1109/7260.989862
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：
A total-power radiometer built in combination with a beacon receiver is being used for low-level attenuation measurements. This experimental receiver was built to measure atmospheric propagation impairments, using the ITALSAT satellite 50-GHz signal. The radiometer is mainly used to provide the reference level for the beacon measurements. Its precision should be better than 3 K, for low attenuation levels, in order to have 0.1-dB accuracy in the attenuation measurements. A suitable calibration procedure is described in this letter.
引用
收藏
页码：93 / 95
页数：3
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