噪声

噪声是在真实信号之上叠加的误差。噪声可能是随机的或系统的。通过以数字形式而不是模拟形式传输信号，可以大大减少噪声，因为每条信息只允许离散值，这些离散值之间的间隔大于噪声的贡献。

编码理论研究如何有效地编码信息，而纠错码则设计在存在噪声的情况下传输和重建信息的方法。

另请参阅

使用 Wolfram|Alpha 探索

更多尝试

参考文献

Abbott, D. and Kiss, L. B. (Eds.). Proc. 2nd Internat. Conf. Unsolved Problems of Noise and Fluctuations, 11-15 July, Adelaide Melville, NY: Amer. Inst. Physics Press,2000.Davenport, W. B. and Root, W. L. An Introduction to the Theory of Random Signals and Noise. New York: IEEE Press, 1987.McDonough, R. N. and Whalen, A. D. Detection of Signals in Noise, 2nd ed. Orlando, FL: Academic Press, 1995.Pierce, J. R. Symbols, Signals and Noise: The Nature and Process of Communication. New York: Harper & Row, 1961.Vainshtein, L. A. and Zubakov, V. D. Extraction of Signals from Noise. New York: Dover, 1970.van der Ziel, A. Noise: Sources, Characterization, Measurement. New York: Prentice-Hall, 1954.van der Ziel, A. Noise in Measurement. New York: Wiley, 1976.Wax, N. Selected Papers on Noise and Stochastic Processes. New York: Dover, 1954.Weisstein, E. W. "关于噪声的书籍。" http://www.ericweisstein.com/encyclopedias/books/Noise.html.

在 Wolfram|Alpha 中被引用

噪声

请引用为

Weisstein, Eric W. "噪声。" 来自 MathWorld——Wolfram Web 资源。 https://mathworld.net.cn/Noise.html