Differential Absorption Radar at 170 GHz for Atmospheric Boundary Layer Water Vapor Profiling

被引：0
|
作者：
Roy, Richard J. [1 ]
Cooper, Ken B. [1 ]
Lebsock, Matthew [1 ]
Millan, Luis [1 ]
Siles, Jose [1 ]
Monje, Raquel Rodriguez [1 ]
机构：
[1] CALTECH, Jet Prop Lab, Pasadena, CA 91126 USA
来源：
2018 15TH EUROPEAN RADAR CONFERENCE (EURAD) | 2018年
基金：
美国国家航空航天局;
关键词：
Millimeter wave radar; Meteorological radar; Radar signal processing; LIDAR;
D O I：
暂无
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：
We are developing a frequency-modulated continuous-wave (FMCW) radar between 167 and 174.8 GHz to measure differential absorption due to water vapor within the atmospheric boundary layer. In this work, we report on single-frequency measurements performed within this band in the presence of precipitating clouds. Despite the relatively low transmit power of 6-10 dBm, the high transmit/receive isolation and low noise figure of the system enables detection of radar echos from rain or clouds with high signal-to-noise ratio (SNR) out to about one kilometer. This work builds on technology developed and measurements performed in our group in the 183.5 to 193 GHz band, which is subject to transmission restrictions due to passive remote sensing platforms that rely on those frequencies.
引用
收藏
页码：417 / 420
页数：4
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