衛星受信MUSE信号のVSB-AM方式によるCATV伝送 : 妨害に対する所要特性の検討 : 無線・光伝送
1993 年 17 巻 13 号 p. 33-38
詳細
1993 年 17 巻 13 号 p. 33-38
In the case of VSB-AM cable transmission of the MUSE signal via satellites , two methods are easily available depending on the mode of the modulated MUSE signal : FM mode and AM mode. We have carried out subiective assessment to examine the DU ratio required to avoid the intereferences that are caused by discrete frequency, adjacent channel signal and ghost signal. The results show that the transmiSsion level of the MUSE signal must be raised in comparison with that of NTSC signal and that the tolerance of the transmission level of the FM mode is larger than that of the AM mode.
