节点文献
Shannon限、时频不确定性和LDPC码
Shannon Limit,Frequency-Temporal Instability and LDPC Code
【摘要】 从信号分析和信息处理的观点论述了Shannon限所包含的实际物理意义,指出了时频不确定性对信号在信道传输中的限制,将信源和信宿、收端和发端、编码与解码接合起来,分析了LDPC码的主要性能。
【Abstract】 From viewpoints of signal and information,we discuss and explain the actually physical meaning comprehended in Shannon limit,and point out what is the limitation of signal transmission in communication channels constrained by frequency-temporal instability,then combining information source with convergence, transmitters with receptors and coding with decoding,we also address main properties of LDPC.
【关键词】 信道;
时频域;
Shannon限;
LDPC码;
【Key words】 channel; frequency-temporal domain; shannon limit; LDPC code;
【Key words】 channel; frequency-temporal domain; shannon limit; LDPC code;
- 【文献出处】 中国有线电视 ,China Digital Cable TV , 编辑部邮箱 ,2006年Z3期
- 【分类号】TN919.1
- 【下载频次】106