In the paper, an inverse problem on mixed-phase wavelet a is discussed.
笔者在文中讨论了混合相位子波a的反演问题。
The final wavelet should be shaped into a minimum phase wavelet, which is then used in wavelet deconvolution.
为使其最小相位化,对最终子波要进行整形,然后再作子波反褶积。
Assuming white noise reflectivity and minimum phase wavelet, the estimation of them simultaneously by linear inversion algorithm is studied.
在反射系数白噪、子波最小相位的假设下,研究基于线性反演的地震反射系数和子波同时估计问题。
During the processing of seismic data interpretation of Tahe Oilfield, pseudomorphism of adjoint phase caused by non zero phase wavelet was easily interpreted as effective reflection.
在塔河油田联片地震资料解释过程中,地震子波非零相位化造成的“伴随相位”假象很容易被当成有效反射加以解释。
The actual non zero phase wavelet was extracted from seismic traces by comparing synthetic seismogram with near wellbore seismic traces and was used to be deconvolved with seismic data.
通过合成地震记录与井旁地震道的对比,从地震道中提取了非零相位的实际地震子波,并据此对原地震数据体进行子波反褶积处理。
The modeling formula based on seismic wavelet can well simulate zero-ph ase wavelet and hybrid-phase wavelet, and also approximate maximal-phase and minimal-phase wavelet in a certain sense.
基于地震子波的模拟公式,可以很好地模拟零相位和混合相位子波,在一定意义上也可以近似模拟最大相位及最小相位子波。
Among the methods for estimating the minimum phase wavelet from its amplitude spectrum, methods of Hilbert-transform, of homomorphy, of zero-phase wavelet and of relaxation-iteration are analysed.
根据子波振幅谱估算最小相位子波已有多种方法,本文对用希尔伯特变换法、同态法、零相位子波法、松弛迭代法等估算的最小相位子波,进行了详细的分析。
Because complex wavelet transforms can exactly identify amplitude and phase information in signal to be dealt with, they are suitable for detection of fault signals in power system.
复值小波变换能准确分辨出信号中所包含的幅值信息和相位信息,因而,适用于电力系统的故障信号的检测。
With consideration of the effects of phase characteristics, direct component and digital truncation, a method for extracting wavelet near a well by using seismic and log data is proposed.
提出了一种利用地震和测井资料、综合考虑子波相位特性、直流分量和截断效应的影响,提取井旁子波的方法。
The maximum entropy deconvolution is performed under the premise that seismic wavelet is of minimum phase, so the forward prediction error is equivalent to reflection coefficient series.
最大熵反褶积是在地震子波为最小相位条件下进行的,其向前预测误差就等于反射系数序列。
The phase information of wavelet transform used in the algorithm is invariant with respect to flat fading, and can resist multipath fading of frequency-selecting channel in quite a few degree.
算法所用的小波变换相位信息特征对平坦衰落信道具有衰落不变性,对频率选择性衰落信道也具有很强的抗多径能力。
Phase information is one of emphasis characters in the power system orthogonal or biorthogonal complex wavelet is strong means to extract phase information in the power system in time.
相位信息是电力系统的一个重要特征,正交或双正交的复小波是实时提取电力系统中相位信息的有力手段。
Two approaches, single decomposition approach and multi-decomposition approach, using discrete wavelet transform for extracting phase in phase profilometry are proposed.
提出了两种在相位轮廓术中使用离散小波变换提取条纹相位的方法:单次分解法和多次分解法。
On the assumption of wavefront prolongation, a new optical phase retrieval algorithm by conventional lateral shear interferometer with wavelet transform is introduced.
在常规横向剪切干涉仪的基础上,利用波前周期延拓的假设,基于小波变换的方法实现了波前重构。
The approach based on wavelet theory and phase space reconstruction for analyzing the law of time-dependent deformation of crack according to the observation data of dam is proposed.
本文基于小波分析理论和相空间重构技术,根据大坝裂缝的实测资料,提出了裂缝时变规律分析方法。
Import magnitude reconstruct method to estimation wavelet base on high-order statistics after phase estimation theory, and perfecting the method of estimation wavelet though high-order statistics.
继高阶统计地震子波相位估计方法之后,将基于高阶统计的幅值重构方法也引入其中,从而完成了完整的高阶统计地震子波估计理论。
A novel method is proposed in this paper by research on complex wavelet, in which phase information of complex wavelet transforms is used to detect frequency and harmonics.
本文通过对复小波的研究发现复小波变换的相位信息能用于频率检测和谐波分析,提出了基于复小波变换相位信息的频率和谐波检测新算法。
A new hybrid method for prediction of solids holdup in gas-solid circulating fluidized bed is proposed based on chaos phase reconstruction and wavelet package as well as neural networks.
提出了一种将混沌的相空间重构、小波包分析和神经网络相结合的新方法用于预测气-固循环流化床的颗粒浓度。
It is also possible to analyze a gas liquid two phase flow condition through an edge detection of wavelet transformation and detect thermodynamic data in a gas liquid two phase flow.
对汽液两相的流动工况也可以用边缘检测小波变换去进行分析,并实现对汽液两相流动的热工数值检测。
A novel method based on continuous wavelet transform (CWT) and guidance of inflexion points of unwrapped phase is developed to measure the phase of non-monotonous fringes.
在连续小波变换和展开相位拐点识别的基础上,提出一种非单调条纹图的相位恢复新方法。
The new learning control rule not only incorporates a state compensation in the conventional ILC formula, but also adopts the wavelet transform to filter learnable tracking errors without phase shift.
在新控制算法中,除了在传统算法基础上增加了状态补偿外,还引用了小波变换来对跟踪误差进行了滤波而没有相位补偿。
The new learning control rule not only incorporated a state compensation in the conventional ILC formula but also adopted the wavelet transform to filter learnable tracking errors without phase shift.
在新控制算法中,除了在传统算法基础上增加了状态补偿外,还引用了小波变换来对跟踪误差进行了滤波而没有相位补偿。
A basic method of processing two phase flow signals was presented based on wavelet transform for measuring accurately solids velocity of two phase flow signals.
为了准确测量气固两相流的固体速度,介绍一种利用小波变换处理两相流信号的基本方法。
A detecting method for the phase drift in excited signals based on wavelet packet analysis is presented. This method can detect the transient phase drift in signals at great level.
提出了一种基于小波包分析的激磁信号相位漂移检测方法,能够以较高的精度检测出相位信号的瞬时漂移。
Based on wavelet transform, a novel on-line detection method is presented, which is based on the detection of symmetry degree among the stator three-phase line currents phases.
基于小波变换的分析方法,提出了基于定子三相电流之间相位对称度检测的定子绕组匝间短路故障在线检测新方法。
Two features detection algorithm based on the wavelet transform modulus maxima and its phase angle is presented, to resolve the problem of weak infrared point targets detection.
为解决强杂波中红外弱点目标的检测问题,提出了基于小波变换模极值及其位相值的双特征检测算法。
The processing results of synthetic data with different wavelet phase and real data show that the method is feasible and promising in improving the resolution of seismic data.
不同相位地震子波的理论模型和野外实际地震资料的处理结果表明,该方法对于提高地震资料的分辨率具有可行性和应用潜力。
The processing results of synthetic data with different wavelet phase and real data show that the method is feasible and promising in improving the resolution of seismic data.
不同相位地震子波的理论模型和野外实际地震资料的处理结果表明,该方法对于提高地震资料的分辨率具有可行性和应用潜力。
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