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1)  split-step Fourier migration
分裂步傅里叶法
1.
In order to study the accuracy of poststack seismic imaging methods under conditions of complex structure and velocity distribution,we tested four poststack depth migration methods:phase-shift plus interpolation method,split-step Fourier migration,Fourier finite-difference migration,and reverse-time migration on Marmousi model.
为了研究复杂构造和速度分布条件下地震资料的叠后精确成像方法,分别采用相移加内插法、分裂步傅里叶法、傅里叶有限差分法和逆时偏移法对复杂的Marmousi模型进行叠后深度域偏移试验,计算结果表明,逆时偏移法具有最佳的成像效果,使得复杂构造成像清晰,绕射波场等完全收敛,计算精度和计算效率较高,是一种高精度的叠后深度偏移方法。
2)  split-step Fourier method
分步傅里叶方法
1.
In order to describe the evolvement and transmission of a femtosecond laser pulse in a photonic crystal fiber subtly,the variation of frequency corresponding to peak pulse power is considered adequately,on the basis of solving generalized nonlinear Schrdinger equation by split-step Fourier method.
为更精细地描绘飞秒光脉冲在光子晶体光纤中的传输和演化,在用分步傅里叶方法求解广义非线性薛定谔方程的基础上,详细考虑光纤参数随脉冲峰值频移的变化,模拟了飞秒光脉冲在光子晶体光纤中传输和演化的过程。
2.
The effect of the linear frequency chirp on the supercontinuum spectrum generation of Gaussian input pusle is numerically investigated in the anomalous dispersion-flatted fiber with convex dispersion profile by the split-step Fourier method.
采用分步傅里叶方法数值研究了线性频率啁啾对高斯光脉冲在凸形色散分布平坦光纤中产生超连续(SC)谱的影响,并与啁啾双曲正割脉冲产生SC谱的情况进行了比较。
3.
A theoretical investigation by split-step Fourier method is presented on the propagation of a femtosecond Gauss pulse in photonic crystal fibers.
运用分步傅里叶方法数值模拟了飞秒高斯脉冲在光子晶体光纤中的传输,计算分析了初始啁啾对脉冲压缩效应的影响。
3)  split-step Fourier method
分步傅里叶法
1.
The pulse transmission equation is solved by using the split-step Fourier method.
运用分步傅里叶法对脉冲传输方程进行求解,并对计算结果进行了分析。
2.
This article numerically investigates by the split-step Fourier method the propagation characteristics and the supercontinuum generation mechanism of femtosecond laser pulses in a Photonic Crystal Fiber(PCF) pumped in different dispersion regions.
文章用分步傅里叶法数值模拟了在不同色散区泵浦光子晶体光纤(PCF)中飞秒激光脉冲的传输特性和超连续谱的产生机理。
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4)  split-step Fourier transform method(SSFM)
分步傅里叶法(SSFM)
5)  split-step-Fourier-transform
分步傅里叶算法
1.
Based on the split-step-Fourier-transform and the diffraction theory of hot-image model we made the simulation of the evolvement of hot-image in case of thick nonlinear medium.
以“热像”形成的衍射理论模型和分步傅里叶算法为基础,模拟研究了厚介质情况下“热像”的形成特点。
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6)  Split-step Fourier algorithm
分步傅里叶算法
1.
The model is based on a modification to the smooth-earth parabolic equation,and uses the split-step Fourier algorithm.
该模型基于修正平坦地面的抛物型方程,采用了分步傅里叶算法;使用AREPS3。
2.
Starting from the extended nonlinear SchrAo¨Gdinger equation in which the quintic nonlinearity effect is included,the evolution and splitting process of continuous optical wave which is amplitude perturbed by the sine optical wave into ultra-short optical pulse trains in optical fibers is numerically simulated by adopting the split-step Fourier algorithm.
从光纤中包含五阶非线性效应的扩展非线性薛定谔方程出发,采用分步傅里叶算法,数值模拟了连续光波的幅度受到正弦光扰动的调制后在光纤中演化分裂成超短脉冲串的过程,探讨了五阶非线性效应和正弦调制周期对脉冲串形成和演化特点以及相应频谱的影响。
3.
In order to improve the precision of simulated supercontinuum (SC) generation, the split-step Fourier algorithm is modified without increasing the computation amount.
为提高模拟超连续谱(SC)产生的精度,在不增加计算量的情况下对传统分步傅里叶算法作了一定的改进。
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补充资料：分裂


分裂
dissociation

　　分裂(diss。ciation)一种潜意识的防御机制，借此一个人将某一思想、情境或对象同其情绪上的意义和情感分离开来。这种防御机制可以使人推迟或延缓体验某些情绪冲击，为人赢得时间以便最终面对现实的挑战。 (梁宝勇撰车丈博审)
　　
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