Title :
NDSA measurements between two LEO satellites in Ku and K bands for the tropospheric water vapor estimate: Performance evaluation at global scale
Author :
Cuccoli, Fabrizio ; Facheris, Luca
Author_Institution :
Dept. of Electron. & Telecommun., Univ. of Florence, Florence, Italy
Abstract :
In this work we present a software simulator for the performance evaluation of the NDSA (Normalized Differential Spectral Absorption) method at global scale assuming a realistic satellite orbital plane with two counter rotating satellite. The software tool processes atmospheric vertical profiles (pressure, temperature, water and liquid contents). The software simulator accounts for the main disturbance effects: scintillation impairments, thermal noise at the receiver and defocusing. The microwave propagation in atmosphere is simulated by means of the MPM93 model. Performance results about NDSA measurements at global scale for a single day at 17.25 and 20.20 GHZ are presented and discussed.
Keywords :
atmospheric electromagnetic wave propagation; atmospheric humidity; atmospheric pressure; atmospheric techniques; atmospheric temperature; microwave propagation; remote sensing by radar; spaceborne radar; troposphere; K band radar; Ku band radar; LEO satellites; MPM93 model; NDSA measurements; atmospheric microwave propagation; atmospheric vertical liquid content profile; atmospheric vertical pressure profile; atmospheric vertical temperature profile; atmospheric vertical water content profile; defocusing effects; frequency 17.25 GHz; frequency 20.20 GHz; normalized differential spectral absorption; receiver thermal noise effects; scintillation effects; software simulator; tropospheric water vapor estimate; Atmosphere; Atmospheric modeling; Electromagnetic wave absorption; Extraterrestrial measurements; Low earth orbit satellites; Microwave propagation; Radiation detectors; Software performance; Software tools; Temperature; LEO satellite; NDSA; attenuation; differential microwave propagation; scintillation; water vapor;
Conference_Titel :
Geoscience and Remote Sensing Symposium,2009 IEEE International,IGARSS 2009
Conference_Location :
Cape Town
Print_ISBN :
978-1-4244-3394-0
Electronic_ISBN :
978-1-4244-3395-7
DOI :
10.1109/IGARSS.2009.5417674
