According to the development trend in China＇ s radio and television industry, the requirements of the media for broadcasters and hosts are totally different from before, and they differ from each other. Good appearan...According to the development trend in China＇ s radio and television industry, the requirements of the media for broadcasters and hosts are totally different from before, and they differ from each other. Good appearance, elegant temperament and pleasant voice are no longer the sole criteria for being employed. This paper analyzes the problems with the education of broadcasting and hosting majors in China＇ s universities and proposes strategies and suggestions on this, so as to offer a guideline for its future development.展开更多
Transmitter identification(TxID) technique is used to diagnose the operation status of radio transmitters in DTV distributed transmission network.A new TxID method for digital video broadcasting-handheld (DVB-H) syste...Transmitter identification(TxID) technique is used to diagnose the operation status of radio transmitters in DTV distributed transmission network.A new TxID method for digital video broadcasting-handheld (DVB-H) system is proposed.Watermark is embedded in the DVB-H signal to form the composite signal.According to watermarking theory we demonstrate the required signal level for watermarking signal to achieve given bit error probability under different circumstance.By selecting the reference pattern to generate watermarking signal,peak-to-average power ratio(PAPR) of the transmitted signal can be improved.Simulation results show that even in wireless situation the receiver can distinguish the watermarking signal with low embedding strength, and distortion to the host signal can also be ignored.展开更多
文摘According to the development trend in China＇ s radio and television industry, the requirements of the media for broadcasters and hosts are totally different from before, and they differ from each other. Good appearance, elegant temperament and pleasant voice are no longer the sole criteria for being employed. This paper analyzes the problems with the education of broadcasting and hosting majors in China＇ s universities and proposes strategies and suggestions on this, so as to offer a guideline for its future development.
文摘Transmitter identification(TxID) technique is used to diagnose the operation status of radio transmitters in DTV distributed transmission network.A new TxID method for digital video broadcasting-handheld (DVB-H) system is proposed.Watermark is embedded in the DVB-H signal to form the composite signal.According to watermarking theory we demonstrate the required signal level for watermarking signal to achieve given bit error probability under different circumstance.By selecting the reference pattern to generate watermarking signal,peak-to-average power ratio(PAPR) of the transmitted signal can be improved.Simulation results show that even in wireless situation the receiver can distinguish the watermarking signal with low embedding strength, and distortion to the host signal can also be ignored.
