信号的信息输运能力分析  

Information Transmission Capacity of Signals

作　　者：宋恒[1] 毛忠阳[1] 王红星[1] 

机构地区：[1]海军航空工程学院电子信息工程系,山东烟台264001

出　　处：《吉林大学学报（信息科学版）》2009年第5期465-471,共7页Journal of Jilin University（Information Science Edition）

基　　金：中国博士后科学基金资助项目(20070421094);国家自然科学基金资助项目(60772056)

摘　　要：针对通信系统的信息传输能力是否严格受限于香农公式的问题,系统地研究了信号的信息输运能力。定义符号为联系信号和信息的纽带,将信号的符号传输速率作为描述信号的信息输运能力的重要指标,并定量计算出现有电子通信系统中信号的最大符号传输速率。研究结果表明,通信系统的信息传输能力由信号承载和传输信息的方式决定;现有电子通信系统中信号处于低速宏观态,仅利用空间自由度承载信息和波动性传输信息,香农公式定量描述了该状态中信号的信息输运能力;高速态、微观态或介观态信号的信息输运能力有可能突破香农公式限制。According to the problem of whether the information transmission capacity of the Shannon formula limit, the information transmission capacity of signals is studied. the key contacting signals and information, and the symbol-transmission rate of signals communications following The symbol is defined as is defined as the importance index describing the information transmission capacity of signals, and maximal symbol-transmission rate of signals of electronic communication systems is worked out. The results are the information transmission capacity of communications essentially lies on information carrier and information transmission mode, and on nowadays communication modes the information carries only by use of the space degree of freedom of signals and the information transmits only by use of the undulatory property of signals. The Shannon formula shows the information transmission capacity of signals. And finally, the information transmission capacity of high speed signals, microcosmic signals and mesoscopic signals are likely to break through the Shannon formula limit.

关 键 词：信息输运 超窄带 波动性 粒子性 

分 类 号：TN911[电子电信—通信与信息系统]