| 电视数字伴音信道全程优化设计 |
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| 引用本文： | 吴诗其,李乐民. 电视数字伴音信道全程优化设计[J]. 电子科技大学学报(社会科学版), 1989, 0(6) |
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| 作者姓名： | 吴诗其 李乐民 |
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| 作者单位： | 电子科技大学信息所(吴诗其)，电子科技大学信息所(李乐民) |
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| 摘 要： | 本文论论广播电视系统中多路数字伴音信道的设计问题。给出了系统参数与输出信号眼图开启度之间的关系式。在接收端采用简化滤波器的条件下,对全信道进行优化设计。以确定发送瑞复杂的成形滤波器最佳参数,保证输出信号眼图开启度最大,从而有效地消除接收滤波器带来的符号间干扰。本文还给出了数字实例。
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| 关 键 词： | 电视广播系统 数字声信道 最优化方法 眼图 |
OPTIMIZATION OF THE OVERALL DIGITAL SOUND CHANNEL IN TV SYSTEMS |
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| Wu Shiqi Li Lemin. OPTIMIZATION OF THE OVERALL DIGITAL SOUND CHANNEL IN TV SYSTEMS[J]. Journal of University of Electronic Science and Technology of China(Social Sciences Edition), 1989, 0(6) |
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| Authors: | Wu Shiqi Li Lemin |
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| Affiliation: | Institute of Information Systems |
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| Abstract: | This paper discusses the design question about the digital multiplexed sound channel in television broadcasting sysytems. The relationship between the system parameters and the eye pattern opening of the output signal is given. When a simple filter in the receiver is uscd, the overall channel is optimized. Optimal parameters of the complex shaping filter in the transmitter are determined, in order that the maximum eye pattern opening of the output signal is obtained. Tire intersymbol interference caused by the receiver is effectually climinated. A numcrical example is also given here. |
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| Keywords: | television broadcasting system digital sound channel optimizationmeth ods eye pattern |
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