Objectives

• Focusing on signal attenuation for Ka-band communication satellite

• To establish a database from collected Ka-band beacon signals and related meteorological data

• To develop a rain attenuation model that links the rain process and its atmospheric effects

• To develop practical site-switching algorithm for site diversity for continuity and reliability of communication link

Benefits and Achievements

 A Regional Ka-Band Rain Attenuation Model has been developed

• The proposed Model presented at the IAC2017, Australia

• The methodology for Effective Rain Rate Conversion to be published in ITU Journals

•  The proposed Model will be addressed to ITU Working Group for possibly adoption

A Site-Switching Algorithm for site diversity has been developed

 The Model and Algorithm have been shared among APSCO Member States for practical applications in their countries

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• APSCO Joint SMMS Constellation
• APSCO Joint SMMS Constellation
• Radiometric Calibration
• Future of Earthquake Project
• Radiometric Calibration Project
• Radiometric Calibration
• COMSAT-Based
• APSCO International Symposium