نتایج جستجو برای: ku and ka band

تعداد نتایج: 16850046  

Journal: :amirkabir international journal of electrical & electronics engineering 2013
r. bahri s.h. maddah hosseini l. mohammadi h. yarmohammadi

in this paper satellite wave propagation at ku and ka band is considered. the design and simulation of a typical satellite beacon receiver at ka band is designed and simulated for the future works. also rain attenuation prediction at ku band using satellite signal beacon measurement and simulations for iran telecommunication research center (itrc) are presented. the measurement setup consists o...

H. Yarmohammadi L. Mohammadi R. Bahri S.H. Maddah Hosseini

In this paper satellite wave propagation at Ku and Ka band is considered. The design and simulation of a typical satellite beacon receiver at Ka band is designed and simulated for the future works. Also rain attenuation prediction at Ku band using satellite signal beacon measurement and simulations for Iran Telecommunication Research Center (ITRC) are presented. The measurement setup consists o...

2009
Direk Khajonrat

Global Precipitation Measurement (GPM) is poised to be the next generation precipitation observations from space after the TRMM mission. The GPM will carry a dual-frequency precipitation radar (DPR), operating at Ku and Ka band frequencies. Since space-borne precipitation observations have never been done in Ka band before, extensive research work on dualfrequency radar, including electromagnet...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده فیزیک 1390

in this thesis, barium ferrite nano particles were prepared by sol-gel method. their structural and magnetic properties of samples have been investigated using thermo gravimetric analysis (tg-dta), x-ray powder diffractometer (xrd), fourier transform infrared (ftir), scanning electron microscopy (sem), field emission scanning electron microscopy (fesem), ac susceptometer, vibrating sample magne...

Journal: :Remote Sensing 2022

Satellite radar altimeters have been successfully used for sea surface height (SSH) measurement decades, gaining great insight in oceanography, meteorology, marine geology, etc. To further improve the observation precision and spatial resolution, evolved from real aperture to synthetic aperture, Ku-band Ka-band. Future (SAR) altimeter of Ka-band is expected achieve better performance than its p...

2010
Guillaume Benoit Hector Fenech Stefano Pezzana Alessia Tomatis

This article presents Eutelsat European Ka-band implementation of the broadband ToowayTM service and its evolution through a dedicated Ka-band exclusive satellite (KA-SAT). It also explains Eutelsat’s choice in selecting the Ka-band for interactive services, broadcast video and IPTV services, demonstrating the optimal consumer service synergy between existing Ku-band and new Ka-band services. K...

Journal: :ICST Trans. Mobile Communications Applications 2014
Rahim Kacimi Ponia Pech

Thanks to the facilities offered by telecommunications, telemedicine today allows physicians and clinicians to access, monitor and diagnose patients remotely. Telemedicine includes several applications such as remote monitoring of chronically ill patients, monitoring people in their everyday lives to provide early detection and intervention for various types of diseases, computer-assisted physi...

Journal: :Space Communications 2002
Ralph L. Brooker

Ka-band offers the promise of very low-cost broadband terminals deployed in quantities an order of magnitude greater than the total number of all the two-way Cand Ku-band terminals installed since the birth of satellite communications. For small terminals, installation and commissioning costs can easily overwhelm equipment cost unless the terminal is pre-qualified for interference-limiting perf...

Journal: :Remote Sensing 2018
Jacques Verron Pascal Bonnefond Lofti Aouf Florence Birol Suchandra A. Bhowmick Stéphane Calmant Taina Conchy Jean-François Crétaux Gerald Dibarboure A. K. Dubey Yannice Faugère Kevin Guerreiro P. K. Gupta Mathieu Hamon Fatma Jebri Raj Kumar Rosemary Morrow Ananda Pascual Marie-Isabelle Pujol Elisabeth Rémy Frédérique Rémy Walter H. F. Smith Jean Tournadre Oscar Vergara

The India–France SARAL/AltiKa mission is the first Ka-band altimetric mission dedicated primarily to oceanography. The mission objectives were firstly the observation of the oceanic mesoscales but also global and regional sea level monitoring, including the coastal zone, data assimilation, and operational oceanography. SARAL/AltiKa proved also to be a great opportunity for inland waters applica...

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