COMPATIBLE HIGH DEFINITION TELEVISION BROADCAST SYSTEMS.

被引：0
|
作者：
Rzeszewski, T.S. [1 ]
Pazarci, M. [1 ]
LoCicero, J.L. [1 ]
机构：
[1] AT&T Bell Lab, Naperville, IL,, USA, AT&T Bell Lab, Naperville, IL, USA
来源：
IEEE Transactions on Broadcasting | 1987年 / BC-33卷 / 04期
关键词：
INFORMATION THEORY - Communication Channels - TELEVISION BROADCASTING - Modulation - TELEVISION TRANSMISSION;
D O I：
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学科分类号：
摘要：
NTSC-compatible HDTV (high-definition TV) systems with incremental improvement potential are described. The systems offer increased horizontal and vertical resolution, reduced crosstalk between the components, and a wide aspect ratio. Experimental results on a split-luminance system show that 600 lines of horizontal resolution are achieved after the luminance signal band has been divided at the encoder and recombined at the decoder. Spatial splitting of the picture is used to increase the aspect ratio. A low-cost HDTV system is presented that uses a modulated-signal combination. With this system, considerable simplification is possible with a slight reduction in resolution. All proposed systems are fully NTSC-compatible and utilize two standard 6-MHz channels for transmission. The improvements can be realized incrementally because of their downward compatibility at the receiver.
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页码：97 / 106
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