It is then subject to such mathematical indignities as wavelet decomposition, multi-resolution Fourier analysis, polyphase filtering and discrete cosine transformation.
接下来它还要经过一些数学处理程序,比如小波分解,多重分辨率傅立叶分析,多相过滤,离散余弦变换等。
Wavelet analysis is a novel research field in the world. To study the new theory, methods and applications of wavelets is of great theoretical significance and practical value.
小波分析是国际上新兴的一个前沿研究领域,研究小波的新理论、新方法以及新应用具有重要的理论意义和实用价值。
Wavelet analysis reveals that the temporal scale of this change is larger than 20 years.
子波分析的结果证实这次转变的时间尺度在20年以上。
Furthermore, in order to make a necessary foundation for further research, the relevant knowledge about wavelet analysis and generalized functions is introduced briefly.
并简要介绍小波分析及广义函数的一些基本原理与相关知识,以此作为本课题研究的必备基础。
As a new technique of signal processing, wavelet analysis has excellent characteristics of time frequency localization and is suitable for analyzing time varying or transient signals.
作为一种日益获得广泛应用的信号处理新技术,小波分析具有良好的时频局域化特性,适应于时变和瞬变信号的分析。
The ground motion time function is a kind of time serial signals, which is a highly varying and nonstationary randow procedure and fit for wavelet analysis.
地震动是由于地震引起的地面运动,其时间历程函数表现为具有突变特征的非平稳随机过程,因此更适于利用小波变换进行频谱分析。
Based on the existing results, this problem is studied deeply in the paper by means of wavelet analysis, simulation, and practical data calculating.
本文在充分吸收已有研究成果的基础上,利用小波分析、模型模拟分析和实际数据计算,从多个方面对这一问题进行了深入研究。
Moreover, based on the analysis of the existed wind field retrieval methods of single Doppler radar, we derive a novel algorithm for wind field retrieval from wavelet analysis.
此外,在对现有的单多普勒雷达风场反演方法进行对比分析的基础上,提出了一种基于小波分析的单多普勒雷达风场反演方法。
Vibration response signals of vehicle are processed with wavelet analysis to reduce noise efficiently, and road surface roughness is analyzed by road response spectrum.
小波分析处理车辆振动响应信号,可有效降噪,通过路面反映谱分析路面不平度。
The use of empirical mode decomposition (EMD) method and wavelet analysis in combination is explored for the detection of changes in the structural response data from structural damage diagnosis.
采用经验模式分解(EMD)与小波分析相结合的方法探讨结构响应数据信号,进行建筑结构损伤检测诊断。
This paper illustrates principle of the peculiarity of signal test based on wavelet analysis, and extracts the peculiarity of signal test in pile foundation.
本文阐述了利用小波分析来检测信号的奇异特征的原理,并对桩基础检测信号的奇异性进行了提取。
The relationship between wavelet analysis and singular signal detecting is deduced, and the example of a pressure sensor singular signal detecting is presented.
推导了小波分析与奇异信号检测的之间的关系,并对某压力传感器的信号进行了奇异值的检测。
To study the measurement and calculation of parameters of celestial bodies, an arithmetic is processed which is based on wavelet analysis and Kalman filter.
针对天文导航中天体参数的测量与计算问题,提出了基于小波分析的天体参数卡尔曼滤波计算方法。
Aimed at noise cancelling cut for ultrasonic inspecting signal of seabed oil pipeline flaw, a kind of noise cancellation method based on wavelet analysis is studied.
针对海底石油管道超声检测信号的噪声消除问题,本文研究了基于小波分析的噪声消除方法。
This article puts emphasis on how to improve compression ratio of image on the premise of ensuring the compressed image with good sight when wavelet analysis is applied to the compression of image.
本文研究的重点是将小波分析应用于图像压缩,探讨在确保压缩图像质量的前提下,如何提高图像压缩比。
The small target detection method of infrared imagery in complex background of sea and sky in studied, and an algorithm based on wavelet analysis and mutual energy combination is presented.
研究复杂背景下红外图像小目标检测问题,提出一种基于小波分析互能量交叉处理的目标检测方法。
This paper describes the composition of bridge health monitoring system and function as well as the basics of wavelet analysis theory.
本文首先介绍了桥梁健康监测系统的组成与功能以及小波分析理论的基础知识。
That provides not only the theoretic bases for discussing the image space of wavelet transform, but also a new method to investigate the wavelet analysis theory further.
这不仅为小波变换像空间的讨论提供了理论基础,也为小波分析理论的进一步研究提供了新的途径。
According to their different characteristics of the targets, noises and background edges in wavelet domain, a small target detection algorithm based on wavelet analysis is proposed.
根据目标、噪声和背景边缘在小波域的不同特点,提出一种基于小波分析的红外小目标检测算法。
The basic concept of the wavelet analysis, binary wavelet decomposition and reconstruction algorithm are introduced, and the peculiarities of the frequency of logging signal are discussed.
介绍了小波分析的基本概念和二进小波的分解及重构算法,探讨了测井信号的频谱特征。
A method of neural network prediction based on wavelet decomposition is proposed by combining the theory of wavelet analysis with the fundamental principle of neural network modeling and prediction.
将小波分析理论与神经网络建模预测基本原理相结合,提出了基于小波分解的神经网络预测方法。
Combining wavelet analysis and neural network characteristics, the error back propagation wavelet neural network based structure and algorithm to ship roll time series prediction are given.
结合小波分析和神经网络的特点,建立了应用于船舶横摇运动时间序列预报的误差反传小波神经网络结构并给出了算法。
By applying wavelet analysis method to image edge detection, multi scale operator of wavelet analysis functions well for noise resisting ability and picture edge reserving.
将小波分析方法应用于图像边缘检测领域,小波分析的多尺度算子在抗噪声和保留图像边缘的能力上有比较好的效果。
Wavelet analysis has space localization property. It is very effective to analyze the signal singularity and singularity location and scale by wavelet analysis.
小波分析具有空间局部化性质,利用小波分析来分析信号的奇异性及奇异性的位置和奇异度的大小是比较有效的。
The definition of wavelet analysis was introduced and the applicability of the logging data wavelet analysis by means of the high resolution sequence stratigraphy stratum was discussed.
阐明了小波分析的基本原理和步骤,探讨了测井信号小波分析在高分辨率层序地层划分中的适用性。
According to wavelet analysis theory, a signal picking up algorithm based on wavelet analysis is proposed to solve problem of passive CNS initial frequency calibration.
根据小波分析理论,针对无源北斗导航定位系统初始校频问题,提出了一种基于小波分析的信号特征提取算法。
In recently years, wavelet analysis has more and more wide application in network traffic model, and it offers the strong base for using network source efficiently.
近年来,小波分析理论在网络业务模型中的应用越来越广泛,它为更有效的利用网络资源提供了坚实的理论基础。
The system includes the following nine modules: pretreatment, wavelet analysis, spectral analysis, forward modeling, inversion, input, output, graph display and help.
系统包括预处理、小波分析、频谱分析、正演、反演、输入、输出、图形显示、帮助等九个模块。
Wavelet analysis, also called wavelet transform, is a new analysis method with good time frequency localization characteristic, so it is suitable for fault analysis of power system.
小波分析(或称小波变换)是一种新的时频分析方法,它具有良好的时频局部化特性,适用于电力系统故障分析。
Based on the analysis of cutting regimes' influences on milling force, the spectrum analysis and wavelet analysis are applied on the random cutting force signals.
在分析其切削力显著性影响因素的基础上,对切削力随机信号进行了现代谱分析与小波分析。
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