Propagation Characteristics for Land Mobile Satellite Systems from L-Band to EHF-Band
نویسنده
چکیده
Several system alternatives are being considered for provision of mobile and personal satellite services in the near future. Many proposals adopt nongeostationary satellite constellations, thus the channel characteristics are not stationary. Furthermore, multiple access techniques under consideration range from narrowband to wideband (e.g. CDMA) solutions. Finally, due to the requirement of being virtually global, a satellite system should provide service in a wide range of environmental conditions. The interesting frequency range covers L/S-band, K/Ka-band and the EHF-band.
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