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Mobile teletext reception using signal processing in frequency domain

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1 Author(s)
Tsuzuku, Aiichiro ; Minist. of Posts & Telecommun., Tokyo, Japan

An experimental study of mobile teletext reception is described. Teletext in Japan is a broadband signal with 5.73 Mb/s; therefore, multipath interference is a serious problem in mobile reception, and it is impossible to obtain the teletext correctly by conventional methods. A multipath reduction technique using signal processing in the frequency domain is developed. In this technique, an original chirp signal is used for reference to identify the radio propagation path. In field trials, the delay profile was precisely obtained, and the bit error rate was reduced. The error correction capability was tested in a computer simulation

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Broadcasting, IEEE Transactions on  (Volume:36 ,  Issue: 4 )