Random fluctuation

The authors simulate the spectrum analysis of signals with uniform random fluctuation frequency by means of uniform time sampling and uniform space sampling .

采用等时隙和等位置（相位）两种采样方法，对具有频率均匀随机波动的简单正弦信号进行了谱分析仿真对比。

Influence of the Sampling Method of Signal with Uniform Random Fluctuation Frequency on Spectrum Analysis

频率均匀随机波动信号采样方式对谱分析的影响

Study on random fluctuation characteristics of amplitude spectra of strong ground motion

强地震动幅值谱随机涨落特征的研究

A New System for Measuring the Random Fluctuation of Radar RF Pulse Wave

一种新的射频脉冲波随机起伏测量系统的研究

Random fluctuation could trigger the self-organization of system .

随机涨落能够诱发系统的自组织过程。

Data Acquisition of Random Fluctuation Pulse Signal

射频脉冲序列随机起伏的数据采集

The Alarm Aura of Financial Distress Discriminant Analysis : a Random Fluctuation Model

财务困境分析中警兆指标的随机游动估计

Obtain much more precise results , as compared with other models with data sequences suffering greater random fluctuation .

尤其是这种模型的预测结果比其它随机波动性较大数据列的模型的预测结果精确得多。

During the simulation , data smoothing has been employed so as to eliminate random fluctuation of experimental data .

在数值模拟中，运用数据平滑技术，以消除实验数据的随机波动。

Error Compensation for Radial Random Fluctuation in Quantitative Inspection of Broken Strands in a Wire Rope

钢丝绳断丝定量检测中径向随机晃动误差的补尝

The normal-mode sound field in shallow water having a positive sound velocity gradient and a random fluctuation surface

具有随机起伏表面的正声速梯度浅海中的简正波声场

Soil water dynamics is a complex time series system with obviously random fluctuation , closely related to regional climate and ecological environment .

土壤水分运动是一个复杂的时间序列系统，其变化与区域气候条件和生态环境密切相关，具有明显的随机性波动。

Under the same foundation , the bearing capacity of each pile varies from point to point with random fluctuation .

在同一基础下，各桩的承载力具有随机分布的差异性。

The RF pulse-to-pulse phase noise through microwave test circuit becomes a VF pulse signal of random fluctuation .

射频脉间相位噪声经过微波检测电路、视频电路后变成随机起伏的视频脉冲信号。

A mathematical interpolation has been developed , which can effectively reduce the influence of the random fluctuation of signal frequency on measuring accuracy .

文中采用的数学插值方法有效地减小了比相信号的频率波动对测量精度的影响。

Application indicates this method is of higher accuracy , and can he applied in the oilfields with certain change trend and big random fluctuation .

实例表明，该方法预测精度高，能有效预测具有某种变化趋势而随机波动较大的油田产量。

With the increase of wind power penetration in gird , wind power output power random fluctuation property had greatly effect on grid frequency .

随着风电穿透功率的增大，风电输出功率的随机波动性对电网频率将产生显著影响。

Scintillation caused by atmospheric turbulence is the most important effect , which leads to random fluctuation in the amplitude and phase .

大气湍流引起的光束闪烁效应是对链路造成影响的主要因素，这种效应会引起信号光振幅和相位的随机变化，进而影响通信质量。

The main purpose of this project is to reduce the distortion errors caused by random fluctuation of cutting force in CNC machining process .

本课题的主要研究目的是减小数控加工过程中切削力随机波动而造成的变形误差。

Two difference deviations , random fluctuation and system linear deviation have been imitated , their influences on X-ray energy distinguish power have been compared .

本文还比较了膜厚无规涨落与系统线性偏差这两种偏差对单色器能量分辨率的影响，计算的结果表明后者的危害较大。

Finally , a type of considering the node random fluctuation static load voltage stability index is proposed for voltage stability analysis of the established SLM model .

最后提出了一种考虑负荷随机波动的节点静态电压稳定指标，对系统所建立的SLM模型进行电压稳定性分析。

The main purpose of this study is to simulation a random fluctuation of wind velocity fitted to specified power spectrum in low frequency range in our wind tunnel .

本文研究的目的是在风洞中模拟风速随机波动的阵风，这个基础性工作对于开展风洞中的其它研究有着重要意义。

The result showed that vegetation coverage change in most of the region in the 10 years was random fluctuation , not vegetation landscape change caused by human activities .

这说明10年来，大部分区域的植被覆盖变化属随机波动，而非人类活动所引起的植被景观变迁现像。

Annual and seasonal rainfall variations failed to reach the mutation level , which showed that the rainfall variation was just random fluctuation in the past 50 years .

年、季降水量均未达到突变水平，说明年、季降水在近50a属一种随机波动现象。

The Markov chain method is presented based on the innovation GM ( 1,1 ) model , which reduces random fluctuation of calibration data . Experiments are also done to test the model .

在等维新息GM（1,1）模型的基础上，引入马尔可夫模型，克服了随机波动数据对预测精度的影响。

Carbon-poor area forms by means of random fluctuation and carbon atom diffusion . Bainitic ferrites nucleate in carbon-poor austenite .

依靠随机涨落，形成贫碳区，贝氏体铁素体在贫碳的奥氏体中形核。

It widens the application range of gray forecast , particularly , the obtained results are more precise than those by other models for data sequences with heavy random fluctuation .

该模型不仅拓宽了灰色预测的应用范围，而且预测结果比其它随机波动性较大的数据列模型的预测结果精确得多。

Random fluctuation of turbulence brings random fluctuation of refractive index and makes atmosphere become a random fluctuation medium , which destroys the coherence of light-wave .

大气湍流对光波传播的影响主要是由于大气随机起伏的湍流引起折射率的随机起伏，破坏了光波的相干性。

The intermittent and random fluctuation of wind speed result that wind power grid-connected power fluctuates largely , which has a negative influence to stability and economy of power grid operation .

由于风速具有随机波动性，因此风力发电并网功率波动很大，这对电网运行的稳定性及经济性带来负面影响。

The concept of a form factor ijs proposed and the software has been developed for error compensation for the radial random fluctuation . Test results show that the method proposed is effective .

提出了波形因素的概念与形式，并用软件实现了钢丝绳断丝定量检测中径向随机晃动误差的补偿。