Non integer period Sampling leads to large error in harmonic analysis by FFT.
利用FFT变换进行谐波分析,非整周期采样会带来较大的误差。
It is traditional to use frequency tracking to realize integer period sampling.
传统的解决方法是采用频率跟踪技术实现采样的整周期性。
An implementation strategy of 16-channel synchronous integrated period sampling by using PCL818 data acquisition module is introduced.
介绍了一种利用PCL818数据采集卡进行16通道同步整周期采样的实现方案。
Through thrice spline interpolation, we get full period sampling data from fix time sampling data. This method is proved feasible by an experiment.
通过三次样条插值,从定时采样的数据中获得整周期采样的数据,经过实验,证明是可行的。
The tach signal is sampled synchronously with the vibration signals. The integral period sampling is implemented by software in the forthcoming process.
对鉴相信号与振动信号进行同步采样,而对振动信号的整周期截取则利用软件实现。
A novel phase detection algorithm that does not need complete period sampling, phase-locked loops or complex electrocircuit hardware was presented in this paper.
本文提出了一种无需整周期采样、无需锁相环和复杂电路硬件的相位检测算法。
To resolve the problem of time-delay estimation for sub-sampling sinusoidal signals, a new method composed of multi-period sampling and multi-layer correlation is proposed.
针对正弦信号时差估计的多解模糊问题,提出采用多周期取点欠采样和多重相关方法来解决。
The integral period sampling, which is realized by realtime frequency calculation and voltage capture function of IC chip, is necessary for precise digital signal processing.
借助芯片的捕获功能,计算信号的实时频率,实现了整周期采样,保证了数字信号处理的精度。
It calculates statistic averages for memory, paging, and CPU activity on a sampling period of a length specified by the user.
它将计算用户指定的采样时间内的内存、分页和CPU活动的统计平均值。
After a second sampling period, the researchers have enough data to conduct a capture-recapture study.
在第二个观察期,研究人员就有了足够多的数据来进行再分析。
Alternatively, we can specify the sampling period, which is the inverse of the sampling rate (in this example, 0.5 sec).
或者,我们指定采样周期,此为逆向取采样率(本例子中, 0.5秒)。
In the example script provided, the sampling rate is every two seconds, which provides rapid feedback, but generates quite a bit of sample data in a short period of time.
在本文提供的示例脚本中,抽样频率是每2秒抽样一次,这样可以提供快速的反馈,但是在短时间内会产生较多的样本数据。
At the end of the counting period, the main gate is closed and counter reset for the next sampling period.
在计数阶段的最后,主控门关闭,然后计数器复位,开始下一个采样阶段。
Sampling point number of every pulse cycle, instantaneous pulse frequency and period was gained with program operation.
经程序运算得到每个脉冲周期的采样点数,瞬时脉冲频率和周期。
The discrepancy between the actual output voltage and expected output voltage of the matrix converter is calculated and added to the switch modulation matrix in the next sampling period as feedback.
该方法将实际输出电压和期望输出电压的比较偏差作为负反馈加到下一个采样周期的开关调制函数矩阵中。
It changes the sampling waves into absolute values and set half period as data window length.
该方法是将采样波形取绝对值,定义数据窗长度为半个周期。
The fast Fourier transform (FFT) will bring on higher error under nonsynchronous sampling and truncated non-integral period, thus more accurate interharmonic parameter values cannot be obtained.
快速傅里叶变换在非同步采样和非整数周期截断的情况下存在较大误差,无法获得较精确的间谐波参数值。
Interferential equations are given after system models are transformed around optimization estimate of state to linearization and dispersed according to sampling period.
对系统模型进行了状态最优估计周围的线性化和采样周期的离散化,给出了干扰方程。
Only one space voltage vector is applied in each sampling period in the implementation of the conventional PMSM DTC system.
在常规直接转矩控制系统中,每一采样周期中只施加一个电压空间矢量。
The model of NCS with multiple-packet transmission is presented considering system noise and network-induced delay longer than one sampling period.
在考虑系统噪声和网络诱导延时大于一个采样周期的情况下,给出了多包传输的网络控制系统模型。
To date, most sensor management techniques are focused on the sensor selection algorithms, hut how to control the sampling period in multisensor surveillance is seldom studied.
目前,传感器管理技术的研究主要集中在传感器对跟踪目标的分配上,而对传感器采样周期的控制研究很少。
The influence of sampling period to NCS is discussed.
讨论了系统采样周期对网络控制系统的影响。
The user can switch the sample function on or off, and can also select the time period after which to perform the sampling.
用户可以切换或关闭功能样品,也可以选择时间段之后进行采样。
For reducing whirling the radial sampling period must be suitable to the rotor speed not excessively short.
为减小涡动,转子径向采样周期应与转速相适应,不宜过快。
This paper discusses the stability of NCS with time-delay longer than one sampling period when both sensor and actuator are time-driven as well as controller is event-driven.
研究了传感器、执行器为时钟驱动,控制器为事件驱动,网络诱导时延大于一个采样周期的网络(ncs)的稳定性问题。
The event-time driven is proposed, in which the sampling period is variable with the change of Internet time delay.
提出事件-时间驱动方式,即采样周期要随着网络环境的变化而变化。
Two key questions, selection of sampling period and phenomenon of frequency aberrance, must be considered when the continuous notch filter is discretized.
本文讨论了离散化时需重点考虑的两个问题:采样周期的选取和频率畸变。
In this paper, a temperature control system for electrical heating furnace, using variable sampling period and variable structure is proposed.
本文提出一种采用变采样周期、变结构的电阻炉温度控制系统。
The block diagram of the system software that the soft start-up and the variable parameters PI control is realized with assemble language 80c196 according with sampling period is given out.
同时,给出了以80c 196汇编语言实现的,根据采样周期进行软启动或变参数PI控制的软件程序框图。
The block diagram of the system software that the soft start-up and the variable parameters PI control is realized with assemble language 80c196 according with sampling period is given out.
同时,给出了以80c 196汇编语言实现的,根据采样周期进行软启动或变参数PI控制的软件程序框图。
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