本文提出了一种利用高阶谱相位数据进行时延估计的新方法。
The method of phase data time delay estimation based on high order spectrum is put forward.
研究了基于高阶谱（主要是三阶谱）和主元分析的故障特征提取方法。
The extracting fault features approach based on high-order spectral for pump valves of reciprocating pump was investigated, especially third order spectral analysis.
高阶谱所具有的特殊性质，有助于人们从新的角度对雷达回波进行分析。
Having the special property, higher spectrum is very useful for us to analyse radar echoes from a new view.
为快速有效地模拟三维波浪问题，采用高阶谱方法建立了完全非线性波浪的数值计算模型。
To simulate 3-d wave rapidly and effectively, a numerical simulation model of fully nonlinear waves was established using the high order spectral method.
针对焊接缺陷超声检测中信号处理的特征提取问题，应用高阶谱方法对三类压力容器焊接缺陷的超声回波信号进行了分析。
The ultrasonic echoes of welding flaws for three types of pressure vessel are analyzed for feature extraction of signal processing using higher-order spectrum method.
提出了基于高阶谱的减噪方法，能有效提高回波信号的信噪比，减弱检测噪声对于缺陷散射特征的影响，从而突出缺陷特征信息。
A method for reducing noise based on high-order spectra was presented by which the signal-to-noise ratio (SNR) could be improved significantly and the flaw characteristic information could stand out.
计算和分析了高阶色散和非线性效应对超连续谱形状和带宽的影响。
The impact of high_order dispersion and nonlinear effects on spectral shape and band width is simulated and analyzed.
利用强激光场驱动下的原子二能级模型，探讨了高次谐波与高阶拉曼谱的相干相消现象。
Interference phenomena between high harmonics and hyper Raman lines in strongly driven two level atomic system has been investigated.
还给出一些有高阶劳厄区的电子衍射谱的实例，图上零阶和高阶的各班点指数均由计算机自动标定。
Some examples are given in which the electron diffraction patterns with Nth order Laue zone are indexed automatically by computer.
提出了基于加权高阶累积量切片的间接自适应谱线增强快速算法。
A fast algorithm of weighted HOC slice based adaptive dynamic line enhancer is established.
研究了反常色散位移光纤中高阶孤子压缩效应与平坦sc谱的产生。
SC generated in anomalous dispersion region of dispersion-shifted fibers by use of compression effects of higher-order soliton is studied.
通过数值计算，对反常色散平坦光纤中高阶孤子压缩效应产生超连续谱进行了系统、深入的研究。
Supercontinuum generation in anomalous dispersion_flattened fibers through higher_order soliton compression effect is simulated and analyzed in detail.
本文从信号高阶累积量的角度出发给出了一种基于地震信号双谱的高分辨率处理方法。
The paper gave a high resolution processing method based on double spectrum of seismic signal from Angle of higher order accumulated amount of signal.
结果发现适当选取激光场的强度使高阶拉曼线处于谐波位置时，由于相干效应，高阶拉曼谱得到抑制而高次谐波谱则得到加强。
It is shown that the hyper Raman lines disappear, the background noises are restrained and the high harmonics are enhanced due to the interference effect.
介绍了SC谱的产生机理，并通过数值计算具体分析和比较了各种光纤中高阶群速度色散（GVD）对SC谱产生的影响。
Then the effects of higher-order group-velocity dispersion (GVD) on SC generation in different fibers are analyzed and contrasted in details through simulation.
通过分析左定与右定问题的关系，应用谱曲线和高阶右定问题的谱，研究了一类高阶左定问题谱的特性及谱对给定参数的可微性。
The spectrum of a class of high-order left-definite problems is studied by the relationship between the left-definite and the right-definite problems.
通过分析左定与右定问题的关系，应用谱曲线和高阶右定问题的谱，研究了一类高阶左定问题谱的特性及谱对给定参数的可微性。
The spectrum of a class of high-order left-definite problems is studied by the relationship between the left-definite and the right-definite problems.
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