实验表明:该方法能够有效预测非平稳的服务器负载序列,预测精度明显高于传统预测方法。
Experiments results show that this method can predict non-stationary server load series efficiently and has higher prediction accuracy than traditional methods.
在考虑多通道非平稳信号干扰及背景噪声的情况下,提出了基于自适应参数型时间延时估计方法。
Taking into account the multi channels disturbance and noises with the non stationary characteristic, time delay estimation based on adaptive parametric approach is proposed.
实验结果表明,该法是分析处理具有时变谱特性的非平稳信号的一种有效方法。
Experiments show that the technique is effective for processing unstable signals of time-variation spectra.
给出了非平稳过程线性组合的首次超越动力可靠度的一个有效数值计算方法。
An efficient numerical method is proposed for calculation of the first crossing reliability of non stationary process linear combination.
提出了一种通用性强、适用于广义平稳随机过程非均匀采样信号谱分析的新方法——采样间隔统计分析法。
A new method, the sampling interval stat. analysis method, was set up to analyze the non-uniformly sampling signal of the wide-sense stationary random processes.
循环平稳处理方法对高斯色噪声不敏感,对非高斯色噪声也有较强的抑制作用,而且在低信噪比情况下工作良好。应用于低信噪比环境中。
Cyclostationary method is not sensitive to the Gaussian color noise and can do with non Gaussian color noise as well, which is proved to be effective in low SNR environment.
提出了一种非平稳地形中TERCOM地图匹配性能的估计方法。
A method for estimating the matching performance of TERCOM map under non stationary terrain is proposed.
建立一种非平稳随机过程整体推断方法。
An integral inference method for nonstationary stochastic process is established.
本文用时间序列分析的方法,在机床连续切削和非连续平稳切削状态下识别机床的固有频率。
In this article, the natural frequencies of machine tools under continuous cutting and steady non-continuous cutting conditions are identified with time series method.
从三次样条函数入手,提出一种新的适合非平稳数据分析的预测滤波器设计方法。
The paper presents a new method to design a predictive filter which suits to analyze non-stationary data.
介绍了非平稳信号时频联合分析中的重排方法。
A reassignment method for nonstationary time-frequency joint analysis is introduced.
提出一种以渐进谱为目标谱的生成幅值和频率非平稳地震加速度时程的迭代方法。
Then a new iteration method is developed for generation of random accelerograms non-stationary both in amplitude and frequency which are compatible with target.
方法简便实用,它将非平稳随机响应问题归结为复代数运算。
The method is straight-forward and efficient, since it reduces the nonstationary response problem to complex algebraic operations only.
该方法得大连理工大学博土学位论文到的趋向性序列能更准确地逼近非平稳随机信号的趋向性曲线。
The trend component series derived in this way can near more exactly the trend component curve of the variance-stationary random signal.
针对数控机床机械系统的非线性和振动信号的非平稳特性,引入局域波分析方法。
Then, Local Wave method is introduced in consideration of the non-stationarity characteristic of the vibrating signals from NC machines.
该方法得到的趋向性序列能更准确地逼近非平稳随机信号的趋向性曲线。
The trend component series derived from this way can near more exactly the trend component curve of the variance-stationary random signal.
针对旋转机械非平稳信号的特点,提出采用谐波小波滤波对现场采集的振动信号进行故障诊断的新方法。
A new method of fault diagnosis of in-situ sampled vibration signals is introduced for the non-stationery signals of rotating machines by using the harmonic wavelet filtering.
验证了时间序列分析方法在非平稳随机信号处理方面的可靠性;
The reliability of the time-series analysis method in processing unsteady random signals is verited.
本文提出一种基于双迭代方法的关于卷积混迭宽带非平稳有色信号的盲源分离算法。
In this paper, a convolutive blind source separation (BSS) algorithm based on a double-iteration method is proposed to process the convolutive mixed non-white broadband signals.
移动的修正周期图谱估计方法在实时处理和非平稳信号处理的场合中是常用的一种有效方法。
To modify periodogram by moving is a useful and effective method for either real time signal processing or non-stable signal processing.
提出了考虑轨道高低不平顺时进行车桥耦合系统垂向非平稳随机振动分析的新方法。
A new method for a vertical non-stationary random vibration analysis of vehicle-bridge systems subjected to track irregularity excitations is proposed.
针对陀螺稳定平台系统中光纤陀螺信号噪声的非平稳性特点,分析并讨论了光纤陀螺输出信号模型及常用陀螺信号滤波方法的优缺点。
Aiming at the non-stationary character of signal noise of fiber optic gyro (FOG) in the stabilized platform, the signal model of FOG and some methods of noise reduction are analyzed and discussed.
针对随机结构在非平稳随机激励下的动力可靠性分析问题,提出了基于点估计法的随机结构动力可靠性分析方法。
For dynamic reliability analysis of stochastic structures under non-stationary random excitation, a new dynamic reliability assessment method is presented based on the point estimation.
介绍了小波变换的基本概念和滤波特性,给出了小波变换作为一种新的分析工具在非平稳信号分析中的应用方法。
The concepts and its filter of wavelet transform are introduced, the application of wavelet as a kind of new analysis tools in unstable signal analysis is presented.
方法能有效地提取平稳的周期波形和非平稳的冲击衰减响应。
By using the proposed method, both the periodic and the impulse response waveforms can be separately extracted from the signal.
本文还提出了非线性多自由度系统在非平稳随机激励和确定性外力的共同作用下,响应分析的等价线性化方法。
An equivalent linearization method is proposed to the case of the nonlinear multi-degree-of-freedom systems with combined excitations of nonstationary processes and deterministic forces.
单位根检验是计量经济学中检验时间序列数据平稳性的最重要工具,而协整检验则是用来判断非平稳变量之间是否存在长期均衡关系的常用方法。
As an important tool of testing time series stationarity, unit root test is always used, and cointegration test is also often implied for judging long equilibrium between nonstationary variables.
介绍了用于非平稳、非线性信号的四分位偏差分形维算法,并通过仿真实例验证了此计算方法的准确性。
The fractal dimension algorithm using quartile deviation on non-stationary and nonlinear signals is introduced. And the accuracy of this algorithm is verified by simulation.
跳频信号是典型的非平稳信号,必须采用非平稳信号处理方法。
Frequency-Hopping signal is a typical nonstationary signal and must adopt nonstationary signal processing methods.
研究结果表明:基于经验模式分解的时频分析方法可以很有效地提取到非平稳故障特征信号,是一种适合于非线性信号处理的方法。
The experiment result shows that the time-frequency method based on EMD can effectively extract the feature of unbalanced fault signal and is proper for non-frequency modulation signal procession.
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