Engineering topics
Rodriguez Monje, Raquel
Publications and source records attributed to Rodriguez Monje, Raquel.
Compact Radar for Measurements of Clouds, Convection and Precipiation
No abstract provided
Differential Absorption Radar at 170 GHz for Atmospheric Boundary Layer Water Vapor Profiling
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. Near future upgrades to the system that will lengthen significantly the detectable range include a 15 to 20 dB increase in output power and 20 dB increase in antenna gain. 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.
DopplerScatt Instrument Concept for Simultaneous Measurements of Ocean Surface Vector Winds and Currents - Spaceborne Architecture and Airborne Instrument Test Results
No abstract available