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Isao NAKAJIMA,Hiroshi JUZOJI,Muhammad Athar SADIQ,Naokazu HAMAMOTO,Shinichi TAIRA 한국멀티미디어학회 2006 한국멀티미디어학회 국제학술대회 Vol.2006 No.-
This paper deals with actual optical data in the urban and sub-urban area of Japan that captured with Fisheye camera and 6 Hi-vision cameras, simultaneously data of the receiving power density from the mobile communications satellite on Ku-band. We have analyzed the both data, and its models to predict propagation for the broadband communication of the land mobile satellite service(LMSS). We are aiming to create such profile database based on actual optical data to detect a line-of-sight propagation (Nakagami-Rician fading) and to transmit huge data to support telemedicine on ambulance.
Helicopter-Satellite Communication Experiment for Disaster Information Transmission
Fujino, Yoshiyuki,Satoh, Masaki,Miura, Amane,Minowa, Tadashi,Nagai, Seiji,Taira, Shinichi 통신위성우주산업연구회 2005 Joint Conference on Satellite Communications Vol.2005 No.-
We present the helicopter-satellite communication system that was successfully developed and demonstrated for the first time. Time diversity and blade-synchronized data transmission to avoid the shadowing due to rotor blades of the helicopter, satellite and polarization auto-tracking, semi-moving picture transmission and position fixing of the picture scene etc will be presented.