Title :
Mobile teletext reception using signal processing in frequency domain
Author :
Tsuzuku, Aiichiro
Author_Institution :
Minist. of Posts & Telecommun., Tokyo, Japan
fDate :
12/1/1990 12:00:00 AM
Abstract :
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
Keywords :
interference suppression; mobile radio systems; radiofrequency interference; radiowave propagation; signal processing; teletext; 5.73 Mbit/s; Japan; bit error rate; broadband signal; chirp signal; computer simulation; delay profile; error correction; field trials; frequency domain; interference suppression; mobile teletext reception; multipath interference; radio propagation path; signal processing; Bit error rate; Chirp; Delay; Error correction; Frequency domain analysis; Interference; Radio propagation; Radiofrequency identification; Signal processing; Teletext;
Journal_Title :
Broadcasting, IEEE Transactions on
