| 丽音多声道广播电视的频谱分布、压扩和编码 |
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| 引用本文： | 吴祖坤. 丽音多声道广播电视的频谱分布、压扩和编码[J]. 深圳大学学报(理工版), 1991, 0(Z1) |
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| 作者姓名： | 吴祖坤 |
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| 作者单位： | 深圳大学电子工程系 |
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| 摘 要： | 本文介绍了香港即将开播的彩电数字伴音广播的数据压扩技术及数据信息编码方法,比较了 PAL/I和PAL/D制的频谱差别,并确定了频谱分配,也指出了收听时可能存在的问题,供建网人员及国内收发设备改装人员参考.
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| 关 键 词： | 电视 立体声 数字 压扩 编码 PAL/I D 制 NICAM728(丽音) |
The Spectrum Distribution,Companding and Encoding of NICAM TV Systems in Hong Kong |
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| Wu Zukun. The Spectrum Distribution,Companding and Encoding of NICAM TV Systems in Hong Kong[J]. Journal of Shenzhen University(Science &engineering), 1991, 0(Z1) |
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| Authors: | Wu Zukun |
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| Affiliation: | Dept of Elec Eng |
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| Abstract: | In this paper,the principles of data companding and data information encoding of near-instantaneously companded audio multiplex system which will be put into prac- tice in July this year in Hong Kong are described in detail.The differences in fre- quency spectrum among the systems of PAL/I and PAL/D are compared and the allocation and accomodation of the new digital multiplexed subcarrier is determined. The potential problems on watching and listening the digitalized stereo signals are also pointed out for taking into the consideration by the personals who are taking charge of networking and refitting the existing TV transmitters and color TV sets. |
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| Keywords: | TV stereo Digital multiplexed Companding Encoding PAL/I D systems NICAM 728 |
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