Title :
Sensitivity of FMCW 95GHz cloud radar for high clouds
Author :
Yamaguchi, Jun ; Takano, Toshiaki ; Nakajima, Teruyuki ; Takamura, Tamio ; Ohno, Hiroshi Kumagai Yuichi ; Nakanishi, Yuji ; Akita, Kenichi ; Kawamura, Youhei ; Futaba, Hideji AbeKenichi ; Okote, Shinichi Y.
Author_Institution :
Grad. Sch. of Sci. & Technol., Chiba Univ., Chiba
Abstract :
Studying the vertical structure of cloud is essential to make better atmospheric modellings for simulations of the global warming. Cloud observation requires very high sensitivity for radar. Although pulse radar is the mainstream of MMCR (millimeter wave cloud radar), FMCW radar has some advantages. FMCW signal has high spatial and time resolution, and enables high durability and cost-performance because all of the components are designed with semiconductor devices. The bistatic FMCW millimeter wave cloud radar created by Engineering of Radio Physics Laboratory at Graduate School of Chiba University is designed to have 20 km detection range of reflectivity and doppler velocity. Using this radar, we observed on a research vessel "MIRAI" in large region on the Pacific Ocean and the Arctic Ocean. These long-term observations and other observation on the ground show good sensitivity of the radar and suggests the possibility of FMCW cloud radar.
Keywords :
CW radar; Doppler radar; FM radar; atmospheric measuring apparatus; clouds; meteorological radar; bistatic FMCW millimeter wave cloud radar; doppler velocity; frequency 95 GHz; global warming; reflectivity velocity; spatial-time resolution; Atmospheric modeling; Atmospheric waves; Clouds; Doppler radar; Global warming; Millimeter wave radar; Oceans; Signal design; Signal resolution; Spatial resolution; FMCW; MMCR Millimeter Wave Cloud Radar; doppler velocity; reflectivity; spatial resolution; time resolution;
Conference_Titel :
Microwave Conference, 2006. APMC 2006. Asia-Pacific
Conference_Location :
Yokohama
Print_ISBN :
978-4-902339-08-6
Electronic_ISBN :
978-4-902339-11-6
DOI :
10.1109/APMC.2006.4429767
