Recently focusing of optical beams and pulse beams by cross - phase modulation has been considered both theoretically and experimentally 近年通过交叉相位调制效应使光束和脉冲光束压缩的研究较多。
In dwdm , the nonlinear effects such as self - phase modulation ( spm ) , cross - phase modulation ( xpm ) become important 然而多波长的密集传输使得光纤中的非线性效应(自相位调制、交叉相位调制等)显著增强。
Carrierless amplitude and phase modulation has emerged as the de facto standard , having captured most of the nascent market to date 无载波振幅和相位调制正在成为事实上的标准，迄今已占了这个新生市场的大部分。
The coupling of noise to signals is simulated by addition , multiplication , convolution , amplitude modulation , or phase modulation etc 并以相加、相乘、 ?旋积、强度调变、或相位调变等方式，模拟杂讯与讯号之结合。
The results show that the probe beam can be induced to focus due to cross - phase modulation from the pump beam under certain conditions 结果表明，在适当的条件下，泵浦光能够通过交叉相位调制效应诱导信号光聚焦。
For lfm signal , we demonstrate the method of employing hamming weighting , spectrum correcting and phase modulation distortion 对线性调频信号的旁瓣抑制介绍了经典海明窗加权处理方法、频谱修正以及相位预矫正几种方法。
In chapter 5 the jamming such as phase modulation noise , binary pseudo random sequence and multiple pseudo targets are discussed 第五章对雷达干扰进行了阐述，主要的干扰信号有连续噪声调相干扰、伪随机码噪声干扰、多假目标干扰。
The study based on self phase modulation mechanism and the effects of gvd on sc generation are mostly focused on by analyzing and calculating theoretically 本文主要研究群速度色散对光纤中自相位调制效应sc谱展宽的影响，分析了产生sc谱的物理机制。
Finally , we study the effect of longitudinal wakefield in the propagation of intense laser in plasma and find that this effect leads to asymmetric self - phase modulation of the pulse 最后研究了尾波场效应对激光传输的影响，发现纵向尾波场效应将导致激光脉冲不对称自相位调制。
