| タイトル | Radar for Monitoring Hurricanes from Geostationary Orbit |
| 本文（外部サイト） | http://hdl.handle.net/2060/20110016698 |
| 著者（英） | Smith, Eric; Im, Eastwood; Lou, Michael; Huang, John; Rahmat-Samii, Yahya; Durden, Stephen |
| 著者所属（英） | California Inst. of Tech. |
| 発行日 | 2004-05-01 |
| 言語 | eng |
| 内容記述 | A document describes a scanning Doppler radar system to be placed in a geostationary orbit for monitoring the three-dimensional structures of hurricanes, cyclones, and severe storms in general. The system would operate at a frequency of 35 GHz. It would include a large deployable spherical antenna reflector, instead of conventional paraboloidal reflectors, that would allow the reflector to remain stationary while moving the antenna feed(s), and thus, create a set of scanning antenna beams without degradation of performance. The radar would have separate transmitting and receiving antenna feeds moving in spiral scans over an angular excursion of 4 from the boresight axis to providing one radar image per hour of a circular surface area of 5,300-km diameter. The system would utilize a real-time pulse-compression technique to obtain 300-m vertical resolution without sacrificing detection sensitivity and without need for a high-peakpower transmitter. An onboard data-processing subsystem would generate three-dimensional rainfall reflectivity and Doppler observations with 13-km horizontal resolution and line-of-sight Doppler velocity at a precision of 0.3 m/s. |
| NASA分類 | Man/System Technology and Life Support |
| レポートNO | NPO-40423 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/269124 |
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