输电线路中部分相干信号的调制不稳定性
Modulational instability of partially coherent signals in electrical transmission lines.
作者信息
Marklund M, Shukla P K
机构信息
Centre for Nonlinear Physics, Department of Physics, Umeå University, Sweden.
出版信息
Phys Rev E Stat Nonlin Soft Matter Phys. 2006 May;73(5 Pt 2):057601. doi: 10.1103/PhysRevE.73.057601. Epub 2006 May 3.
PMID:16803083
Abstract
We present an investigation of the modulational instability of partially coherent signals in electrical transmission lines. Starting from the modified Ginzburg-Landau equations and the Wigner-Moyal representation, we derive a nonlinear dispersion relation for the modulational instability. It is found that the effect of signal broadbandness reduces the growth rate of the modulational instability.
摘要
我们展示了对输电线路中部分相干信号调制不稳定性的研究。从修正的金兹堡 - 朗道方程和维格纳 - 莫亚尔表示出发，我们推导出了调制不稳定性的非线性色散关系。结果发现，信号宽带性的影响降低了调制不稳定性的增长率。
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