正交频分复用技术中的混沌

Y. Suansook, K. Paithoonwattanakit
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引用次数: 3

摘要

本文主要研究了高速双向无线数据传输和移动数据传输中传输技术可能产生的混沌特性。OFDM载波的频域频谱是一个sinc函数,它是矩形脉冲的傅里叶变换。系统初始条件的微小变化引起的传输灵敏度可以用OFDM频谱的李雅普诺夫指数的发散率来解释。给出了相应的李雅普诺夫指数分岔图。讨论了该函数的混沌行为。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Chaos in Orthogonal Frequency Divison Multiplexing Technique
In this paper we studied the chaotic property that can arise in transmission technique that mostly use in high-speed bidirectional wireless data transfer and mobile data transfer. The spectrum of OFDM carrier in frequency domain is a sinc function, which is Fourier transform of the rectangular pulse. The transmission sensitivity that caused from small change in an initial condition of a system could be explained by a divergent rate of the Lyapunov exponent of OFDM spectrum. The corresponding bifurcation diagram of the Lyapunov exponent is presented. The chaotic behavior of the function was also discussed.
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