| 正确认识山农信道容量定理 |
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| 作者姓名： | 郝建民 |
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| 作者单位： | 中国运载火箭技术研究院704所 北京100076 |
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| 摘 要： | 山农信道容量定理公式中的信道带宽恒为信源所发出的消息信号的带宽 ,是信道带宽的理论最小极限 ;它不同于现代通信工程中传输已调制信号时所需要的信道带宽。这是本文所证明的基本结论。这一结论将限制信道容量定理的普适性和实用性。
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| 关 键 词： | +山农 信道容量 +信道带宽 熵 信息论 |
Having a Correct Understanding of Shannon's Channel Capacity Theorem |
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| Authors: | Hao Jianmin |
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| Institution: | Hao Jianmin |
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| Abstract: | A elementary conclusion is proved in this paper that the channel bandwidth in the formula of Shannon's channel capacity theorem is identically equal to the bandwidth of message signal from the information source,which is the theoretical least limit for all the channel bandwiaths.The bandwidth is different from the bandwidth of the channel transmitting the modulated signal in the modern communication system.The conclusion will limit the universality and the practicality of the channel capacity theorem. |
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| Keywords: | C E Shannon Channel capacity Channel bandwidth Entropy Information theory |
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