Development of a 95-GHz Airborne Cloud Profiling Radar (SPIDER) --Technical Aspects--

Hiroaki HORIE  Toshio IGUCHI  Hiroshi HANADO  Hiroshi KUROIWA  Hajime OKAMOTO  Hiroshi KUMAGAI  

IEICE TRANSACTIONS on Communications   Vol.E83-B   No.9   pp.2010-2020
Publication Date: 2000/09/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Advances in Radar Systems)
cloud profiling radar,  airborne radar measurement,  millimeter wave radar,  multiparameter radar,  

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An airborne cloud profiling radar (SPIDER) which has several unique features has been developed at CRL. In this paper, the objectives and design considerations are outlined, and the system is described. The features of SPIDER are summarized below. (1) A W-band frequency (95 GHz) is used to provide very high sensitivity to small cloud particles. (2) The radar is carried by a jet aircraft that can fly high above most clouds. (3) Full-polarimetric and Doppler capabilities are incorporated in the unit. (4) Almost all radar operational parameters are under software control, and most processing is in real time. (5) The design gives consideration to the study of cloud radiation and microphysics. The system has been completed and is still undergoing performance testing. The functions and performance of the SPIDER system are currently fulfilling the intentions of its design. Several interesting cloud features that had not been seen with previous instruments have already been observed.