| 格状编码32QAM／16QAM高清晰度电视传输系统的误码性能 |
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| 引用本文： | 李光球,姚庆栋.格状编码32QAM／16QAM高清晰度电视传输系统的误码性能[J].浙江大学学报(自然科学版 ),1995,29(3):310-316. |
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| 作者姓名： | 李光球 姚庆栋 |
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| 基金项目： | 国家自然科学重点基金,国家科委重点攻关项目 |
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| 摘 要： | 本文描述压缩了的ＨＤＴＶ信号地面数字传输的一种方法．首先分析地面电视广播信道的多径干扰模型，提出具有代表性的信道参数．其次讨论格状编码３２ＱＡＭ／１６ＱＡＭ，选定编码器结构使之具有很好的性能／复杂性折衷．ＬＭＳ算法自适应横向均衡器用于克服多径衰落引起的码间干扰．研究在加性噪音和多径干扰下ＨＤＴＶ传输系统的误码性能．计算机模拟结果表明系统性能良好．
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| 关 键 词： | 格状编码 高清晰度电视 电视传输系统 电视 |
The error performance of TCM32QAM/16QAM HDTV terrestrial transmission system |
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| Li Guangqiu,Yao Qingdong, Qiu Peiliang,Liang Huijun,Zhu Xiaofu,Zheng Wei.The error performance of TCM32QAM/16QAM HDTV terrestrial transmission system[J].Journal of Zhejiang University(Engineering Science),1995,29(3):310-316. |
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| Authors: | Li Guangqiu Yao Qingdong Qiu Peiliang Liang Huijun Zhu Xiaofu Zheng Wei |
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| Affiliation: | Department of Information Scionee and Electronics |
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| Abstract: | This paper describes the approach to digital terrestrial transmission of compressed HDTV signal. First,we analyse the multipath model of terrestrial televison broadcast and suggest a set of typical value of parameters of the fading channel.Second,we discussed TCM32QAM/16QAM with a encoder structure to have a good po r for mance/compie-city tradeoff.An eq ualiser with LMS algorithm combats intersymbol interference is involved in the system. The paper studies the bit error rate Performance of HDTV transmission system. The computer simulation resultS indicate that the system has a god performance. |
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| Keywords: | trellis code high definition television quadrature amplitude modulation |
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