NASA NTRS · 19920014843
Multi-carrier mobile TDMA system with active array antenna
Abstract
A multi-carrier time division multiple access (TDMA) is proposed for the future mobile satellite communications systems that include a multi-satellite system. This TDMA system employs the active array antenna in which the digital beam forming technique is adopted to control the antenna beam direction. The antenna beam forming is carried out at the base band frequency by using the digital signal processing technique. The time division duplex technique is applied for the TDM/TDMA burst format, in order not to overlap transmit and receive timing.
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Suzuki, Ryutaro, Matsumoto, Yasushi, Hamamoto, Naokazu. 1990-01-01. Multi-carrier mobile TDMA system with active array antenna. https://ntrs.nasa.gov/citations/19920014843
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