A big part of this thesis discusses the detection and parameter estimation of periodic components with several algorithms.
本文主要内容是讨论几种经典算法对周期信号的检测和参数估计。
To evaluate the influences of the stochastic component on apparatus, it is necessary to remove the periodic components from the vibration signal.
为评估随机成分对设备的影响，需要将周期成分从振动信号中去除。
As wavelet module maxima occur at peaks of signal, the pretreatment removes power frequency periodic components from electric signal and thus avoids misjudgments of fault.
通过预处理滤除工频周期分量，消除了小波变换在信号峰值处的模极大值，从而避免了对故障的误判。
Based on the primary qualitative method, we propose an annual runoff prediction model using weighted sum of wavelet coefficients of major periods to predict the periodic components.
本文在原有定性分析方法的基础上，提出基于年径流时间序列主周期小波系数加权求和预测周期成分的年径流预测模型。
In these cases, plan to budget for periodic replacement of sprinkler heads and other irrigation system components.
在这种情况下，计划预算花洒头的灌溉系统和其他部件的定期更换。
Periodic non-roundness of railway wheels will cause a series of variety on vehicle-track coupling system dynamic responses, which has a detrimental influence on both track and vehicle components.
铁路车轮的周期性非圆化将引起车辆-轨道耦合系统一系列动力响应的变化，对系统的各个部件都有着危害性的影响。
This makes the LTC6991 useful for intervalometers, watchdog timers and periodic wake-up timers with minimal components and effort.
这使LTC 6991适用于定时曝光控制计、看门狗定时器和周期性唤醒定时器，而所需的组件和工作量极少。
Anew approach, named Modified Fast Fourier Transform (MFFT), is proposed to analyze the components of a periodic signal when sampling duration is not equal to an integer multiple of the fundamentals.
提出了一种改进的快速付立叶变换(MFFT)的计算方法，在采样的持续时间不是信号周期整数倍的条件下，能够准确地提供此信号中各周期分量的特性。
The trend component and non-periodic cycle components with different average cycle of the log-price series were found.
得到了趋势项和几个不同平均周期的非周期循环分量。
The trend component and non-periodic cycle components with different average cycle of the log-price series were found.
得到了趋势项和几个不同平均周期的非周期循环分量。
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