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数字电视传输概念(三)
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作者 马鸿章 《现代电视技术》 2002年第5期69-76,共8页
主要名词解释: 正交调制,最早用于NTSC副载波调制。一个副载波携带两个色度。副载波分为两正交振荡。调制后两已调波相加,相位代表颜色,幅度代表色饱和度。
关键词 数字电视传输 数据流 向前误差校正 DVB—T 功率频谱密度 格子码 字符速率 编码器 奈奎斯特滤波器 移位寄存器
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Multiple-Symbol Interleaved RS Codes and Two-Pass Decoding Algorithm
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作者 WANG Zhongfeng Ahmad Chini +1 位作者 Mehdi T.Kilani ZHOU Jun 《China Communications》 SCIE CSCD 2016年第4期14-19,共6页
For communication systems with heavy burst noise, an optimal Forward Error Correction(FEC) scheme is expected to have a large burst error correction capability while simultaneously owning moderate random error correct... For communication systems with heavy burst noise, an optimal Forward Error Correction(FEC) scheme is expected to have a large burst error correction capability while simultaneously owning moderate random error correction capability. This letter presents a new FEC scheme based on multiple-symbol interleaved Reed-Solomon codes and an associated two-pass decoding algorithm. It is shown that the proposed multi-symbol interleaved Reed-Solomon scheme can achieve nearly twice as much as the burst error correction capability of conventional single-symbol interleaved Reed-Solomon codes with the same code length and code rate. 展开更多
关键词 burst error erasure decoding FEC interleaved Reed-Solomon codes
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