nonstationary

Signals of a pulse-echo ground penetrating radar ( GPR ) possess typical nonstationary and nonlinear properties.

脉冲探地雷达 回波 信号是典型的非平稳、非线性信号.

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According to Priestly evolutionary random process theory, the evolutionary power spectra density function of nonstationary random process is presented by theory method.

按照Priestly提出的演变随机过程理论，对非平稳随机过程的演变功率谱密度函数进行了理论推导，并给出了定义。

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Nonstationary seasonality of upper ocean temperature in the California Current.

在加利福尼亚水流上面海洋温度不固定性的季节性.

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Unsocial hours, eg on night shifts homogeneous nonstationary time series

非正常工作时间（如夜班）.齐次非平稳时间序列

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Nonstationary vibration test of vehicle during accelerating and decelerating has been carried out. Based on the experiment, the Maximum Entropy Spectrum Estimation with Burg algorithm is used to analyze the experimental data.

对车辆起步加速和减速滑行时的非平稳振动进行了实验，在此基础上用Burg快速算法对实验数据进行极大熵谱分析。

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The sojourn limit theorem on the standardized nonstationary Gaussian processes limit of rights

标准非平稳高斯过程的逗留极限定理

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Nonstationary signal processing is a branch of modern digital signal processing. Being as an effective tool of nonstationary signal processing, adaptive time-frequency analysis is rapidly developed by using time-varying parameter modeling.

非平稳随机信号分析是现代数字信号处理的一个重要分支，而基于时变参数建模的自适应时频分析是处理非平稳信号的一个有效工具。

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Study on the nonstationary characteristic of high wind speed

大风风速非定常性的特征

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The experiment results show that it is applicable to adaptive detection systems in nonstationary as well as stationary environments, and the estimation variances of the adaptive parameter identification and time delay estimation applications are significantly decreased because of the dynamic convergence determination.

实验结果表明，动态判断收敛方法对平稳和非平稳检测环境均适用，相应检测条件下的自适应系统参数辨识及时延估计的方差因此得到较大改善。

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Nonstationary quiver spindle background sound analysis of airplane via Wigner-Ville and wavelet time-scale distribution

基于Wigner-Ville分布和Wavelet时间尺度的飞机非平稳抖杆背景声分析

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Though many nonstationary signals are encountered, the scholars have to suppose that all signals are stationary.

尽管人们经常面临大量的非平稳信号，受理论条件的限制，人们不得不将非平稳假设为平稳。

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This phase of the filtration process is called nonstationary filtration.

这个过滤阶段称为非稳态过滤。

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For nonstationary Stokes problem, materials'anisotropic character should be considered in a boundary layer or near the angular of the domain fJ.

对发展型Stokes方程，由于边界层或区域的拐角处需考虑物质的各向异性特征。

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Nonparametric Density Estimation of a Continuous Time Parameter Nonstationary Stochastic Process

非参数密度估计量对于一个连续时间非平稳过程的相合性

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Law of the iterated logarithm for nonstationary negatively associated random fields

非平稳NA随机变量域的重对数律

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A reassignment method for nonstationary time-frequency joint analysis is introduced.

介绍了非平稳信号时频联合分析中的重排方法.

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The method does not need filtering and can sample directly from the power spectrum density function of the irregularity of railway track and be appliable for stationary and nonstationary railway irregularities.

这种方法不需要进行滤波，直接对轨道不平顺的功率谱密度函数进行采样处理，对平稳的及非平稳的轨道不平顺均可应用。

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The time-frequency method analyzed the nonstationary surface myoelectric signals during muscle dynamic contractions was introduced.

介绍了用于肌肉动态收缩期间非平稳表面肌电信号的时频分析方法.

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In recent years, the time-varying parametric model, especially time-varying auto-regressive ( TVAR) parametric model is used to describe a nonstationary random signal widely for its parsimony and high resolution.

时变自回归（TVAR）参数模型具有良好的参数压缩性和高分辨率特性，是近年来分析和处理非平稳随机信号的一种有效的方法。

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The method is straight-forward and efficient, since it reduces the nonstationary response problem to complex algebraic operations only.

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。

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Signals of a pulse-echo mode ground penetrating radar ( GPR ) possess typical nonstationary and nonlinear properties.

摘要脉冲探地雷达 回波 信号是典型的非平稳、非线性信号.

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By analyzing the series of stochastic conditional heteroscedasticity models, we expound and demonstrate the viewpoint of market being nonstationary equilibrium and deduce corresponsive stock price forecasting models.

通过分析随机条件异方差系列模型，阐述并论证了市场非稳定均衡的观点。

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The Characteristics of Nonstationary Time Series Described by Time-varying ARMA Models

由时变ARMA模型描述的一类非平稳时间序列的特性

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According to the change character of the nonstationary time series with rising trend, the time series model with the deterministic trend and the stochastic trend model with a unit root can be established.

针对增长型外汇储备时间序列变化复杂性的特点，可以建立确定性趋势的时间序列模型及包含单位根的随机趋势模型。

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The experimental results meet the expected requirement and show the advantage of the JDL for bistatic clutter cancellation in the nonstationary clutter environment.

实验结果满足设计要求，并显示了JDL算法用于抑制非平稳环境中的双基杂波的优势。

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This thesis presents an algorithm based on nonstationary modeling and lucubrates relative problems. 2.

本文提出了一种非平稳建模的方法，并对相关问题进行了深入研究。

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H~ ( 3/ 2)( q)-solution of system of integro-differential equations for nonstationary population evolution process

非定常人口发展过程的积分-偏微分方程组的H~（3/2）（Q）-解

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Abstract: Signals of a pulse-echo mode ground penetrating radar ( GPR ) possess typical nonstationary and nonlinear properties.

文摘: 脉冲探地雷达 回波 信号是典型的非平稳、非线性信号.

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Cohen's bilinear time frequency distribution has received considerable attention as a powerful tool for analyzing nonstationary signals.

Cohen类双线性时频分布作为一种有力的非平稳信号解析工具，得到日益广泛的应用。

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Semi-active vibration control for an oil platform under nonstationary wave force

非平稳随机载荷下海洋平台振动半主动控制

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