• 方法:相关计算功率谱分析法。

    Methods Correlation and spectrum were used.

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  • 功率分析机械故障诊断技术精密诊断常用方法

    Power Spectrum Analysis is a common method for precise detection in mechanical fault diagnosis.

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  • 作包络功率分析,能有效齿轮箱故障进行诊断分析

    It is an effective and reliable method to analyze signals and diagnose gearbox by Hilbert power spectrum analysis.

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  • 利用功率谱分析噪声信号特性,利用相干确定噪声源。

    By using coherent analysis, we can define the noise source.

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  • 功率分析方法分析了在路面激励下柔性模型振动特性

    The random vibration characteristic of the flexible model is simulated by using PSD method.

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  • 再结合传统功率谱分析方法讨论水分条件年际周期变化。

    The dry-wet cycle and the climatic accident of the water content in year's periods are revealed.

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  • 根据功率分析入海泥沙存在着310年左右周期性波动

    According to the spectrum analysis, the sediment load also fluctuated at the periodicity of 3a and 10a.

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  • 电信号的功率谱分析结果显示了接触对照组一些指标上差异

    Many indices of EEG power spectrum were different between the exposed group and control group.

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  • 介绍数据回放、数据预处理、数据统计分析分析功率分析

    Having introduced the data returns put, data pre-processing and data statistical analysis, spectrum analysis and power spectrum analysis.

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  • 分析采用了时域分析功率分析时变谱分析、同态处理多种分析算法。

    The lung sounds data analysis USES time domain analysis, frequency domain analysis, power spectra analysis, time-varying spectra analysis and so on.

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  • 本文采用功率分析讨论了作用三轴汽车平衡悬挂承载部件载荷问题

    By means of spectral analysis method, the problem of dynamic loads acting on the load-carring components of rear bogie suspension system of a truck is analysed in this paper.

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  • 通过功率分析研究了偏心力作用功率特性探讨了主动控制策略效果。

    The characteristics of power flow are studied by analyzing the power flow spectra. The effects of the active control are discussed.

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  • 心率功率谱分析方法观察了不同频率刺激大鼠躯体神经心率血压影响机理。

    The effects of electrical stimulations to madian and sciatic nerves on heart rate (HR) and blood pressure (BP)were studied with HR power spectral method.

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  • 本文扼要叙述用于离散数据功率分析的自相关回归法(ARM数学过程

    This paper briefly introduces the mathematical processing of ARM used in power spectral analysis of discrete time-histories data and confirms the usalitity of ARM in earthquake engineering.

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  • 通过颗粒碰撞压力时间序列功率分析混沌分析研究频域特性和混沌特征。

    To understand the frequency and chaotic characteristics of the particle colliding force, the time series of particle colliding force are analyzed by power spectrum analysis and chaotic theory.

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  • 信号处理中,传统功率分析方法包含信息量相关方法前者具有更多优点

    In signal processing field, the spectrum correlative technology has more advantages than the conventional power spectrum method, because the latter includes less information.

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  • 后者功率分析显示出存在着明显1122振动,且和太阳活动相应的周期很好地耦合

    The power spectrum analyses of the subtropical high indexes reveal a significant 11- and 22- years cycle, coupling well with the same cycle of slar activity.

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  • 采用滤波进行功率谱分析,不存在数据截断带来误差,还方便地用于等百分比带宽谱分析

    But the filter method avoids the error caused by truncated data and it can achieve the analysis of a fixed percentage bandwidth easily.

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  • 时变功率分析发现,蚱蝉功率谱的某些成分有显著的变化,可作为类间信息传递的方式

    Analysis of power spectrum for cicada's song, and it is a possible way for cicadas transfering their information.

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  • 功率分析显示ENSO的冷事件和暖事件三个共同明显周期即1826个月47个月;

    Through power spectrum analysis, there are three obvious common periods, 18 months, 26 months and 47 months, for ENSO events.

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  • 文中介绍了基于数字滤波低频随机信号实时功率分析的实现方法给出了实时算法设计要点。

    In this paper, a real time power spectrum analyzer of low frequency random signal based on digital filters is introduced, and a design method of real time arithmetic is given.

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  • 应用功率分析R/S分析、 混沌分析流化床压力波动信号性质组成进行了定量解剖。

    The properties and components of pressure fluctuation signals in gas solid fluidized bed was dissected quantitatively by using power spectrum analysis, R/S analysis and chaos analysis.

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  • 通过涡轮喷气涡轮风扇发动机试车噪声采集和声功率分析讨论发动机主要噪声源噪声的特征

    Through noise data collection and power spectrum analysis of turbojet and turbofan, the main noise source and characteristics of noise are discussed.

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  • 动态特性信号分析主要功能包括信号采集统计分析时域分析相关分析分析、自功率分析

    It mainly includes signal acquisition, statistical analysis, time domain analysis, autocorrelation analysis, spectrum analysis, self-power spectrum analysis, etc.

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  • 型优选测试系统实验的基础上,我们引入信号分析工具——功率谱分析作为评估优劣一个标准

    Based on the groove testing system, we induced the spectral analysis which is the signal analysis tool into evaluating the grooves, and used it as an evaluating standard.

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  • 噪声分析一般采用功率谱分析功率谱分析研究空化噪声这种具有很强突变性的信号具有明显的缺陷。

    Power spectrum analysis is always used in spectrum analysis of cavitation noise. However, it is obviously unfit for research on the transient signal such as cavitation noise.

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  • 作为对照,自相关功率分析检测周期项理论值序列BIH的世界时序列,得到显著的短周期项功率谱

    In contrast with this result, the same analyses of both the theoretical series of tidal terms and the, BIH series of UT demonstrafe the notable power spectrum of the short-period terms.

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  • 目前心率变异性信号分析主要功率谱分析复杂性分析法不多,麻醉HRV信号的复杂性分析

    However, presently the main analyzing methods of HRV are spectral analysis, while complexity analysis of HRV is less, and complexity analysis of HRV signal during anaesthesia is much more less.

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  • 目前心率变异性信号分析主要功率谱分析复杂性分析法不多,麻醉HRV信号的复杂性分析

    However, presently the main analyzing methods of HRV are spectral analysis, while complexity analysis of HRV is less, and complexity analysis of HRV signal during anaesthesia is much more less.

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