Recently the synchronous sampling method based on the GPS has been applied in power system.
目前，基于GPS的同步采样方法已开始应用于电力系统状态变量的同步采样。
For data acquisition and calculation, a quasi synchronous sampling algorithm is used in the software.
在数据采样、计算的软件处理中，采用准同步采样及其算法。
Synchronous sampling by software is commonly used in digital measurement of periodic electric signals.
软件同步采样是周期电气信号测量中最常用的采样方式。
Using the clock synchronization, synchronous sampling could be realized on an asynchronous control network.
为了能在异步控制网络上实现采样同步，可采用时钟同步方法。
Experiments on a computer prove that the results have the same accuracy of the synchronous sampling method.
计算机模拟实验说明其测量结果与同步采样具有相当的准确度。
By adopting the synchronous sampling technology, this method has removed the leakage effect that exists in DFT.
采用同步采样技术，根本消除了DFT的泄漏效应。
Software synchronous sampling is widely employed in periodic signal measurement, but measurement errors occur very commonly.
周期信号测量中广泛采用软件同步采样测量方法，其测量误差普遍存在。
ASM samples signal with no strictly equal intervals in order that each sampling point is close to synchronous sampling point.
近似同步法采用了不严格相等的采样间隔，从而使每个采样点都尽量靠近同步采样点。
Secondly, as the characteristics of the ship electronic power system, it is almost impossible to achieve synchronous sampling.
其次，由于船舶电力系统的强噪声背景特性，使得同步采样难以实现。
Compared with asynchronous sampling mode, synchronous circuit has the advantages of short sampling period and small distortion.
与异步采样电路相比，同步采样电路具有周期短、失真小等优点。
By establishing the mixed synchronous and asynchronous sampling arithmetic, the power measurement error expressions were deduced.
建立了混合同步采样、非同步采样中两种算法的数学模型，推导了功率测量误差的一般表达式。
Application of the hardware PLL technology can achieve the synchronous sampling more effectively and help improve the sampling accuracy.
采用了硬件锁相环技术，可更加有效实现同步采样，提高了采样精度。
A weighted algorithm is proposed for reducing effectively the error caused by non-synchronous sampling in active power and power factor measurement.
提出了一种能有效地抑制由非同步采样引起的有功功率及功率因数的测量误差的加权算法。
ASM also provides an error correction formula deduced from matrix inversion theorem to clear up the error originated from approximate synchronous sampling.
近似同步法还提供了一个用基于系统辨识的矩阵反演定理导出的误差校正公式，它能消除近似同步采样造成的原始误差。
Broken slag and synchronous sampling methods bring to simpler structure, less sampling time and higher reliability of it, which is a key to solve a problem.
取样机所采用的破渣与取样同步进行的取样方式使结构大为简化，取样时间减少，可靠性增高，是解决问题的关键。
Since the Fast Fourier Transform (FFT) was presented, the harmonics measurement based on Fourier Transform which requires synchronous sampling has been used widely.
自提出快速傅里叶变换算法(FFT)以来，基于傅里叶变换的谐波测量便得到了广泛应用。
In digital measurement of period electric signals, uniform and synchronous sampling is a commonly used method with high performance and low computational complexity.
在周期电气信号的微机测量中普遍采用等间隔同步交流采样。
Spectral leakage caused by synchronous error in no-synchronous sampling is an important reason, which reduces the accuracy of spectral analysis and harmonic measurement.
采样不同步产生的同步误差是造成频谱泄漏和影响谐波分析准确性、检测精度的重要原因。
Based on synchronous sampling of soil and crops from 39 counties of Chongqing, 456 soil samples and 936 crop samples (including stem, grain of paddy and corn) were collected.
通过对重庆市全境范围39个区县农田土壤及主要粮食作物进行同步取样调查，获取土壤样品456份，水稻、玉米植株及籽粒936份。
Frequency tracking means that sampling intervals of following sampling is updated according to new frequency estimation, so synchronous sampling error will be reduce step by step.
频率跟踪就是依据前一次频率估计修改下一次采样的采样间隔，从而使同步偏差越来越小。
This paper demonstrates an asynchronous sampling scheme, which can eliminate the restriction of the synchronous sampling requirement, for the measurement of the active power of the ac signal.
本文提出了旨在消除同步采样条件限制的交流信号有功功率测量的异步采样方法。
Structure and theory of wide magnitude electrical energy measurement module based on PSOC (EPSOC) are introduced in this paper, adjustable range algorithm and synchronous sampling are analyzed.
介绍了一种基于可编程片上系统（PSOC）的宽量程电能计量模块（EPSOC）的结构与原理，分析了自调增益算法及同步采样算法。
The clock signal provided by Global Positioning System(GPS)is widely used in electric power system for relay protection, SOE (Sequence of Events), fault locating, synchronous sampling and so on.
GPS同步时钟信号已在电力系统的继电保护、事件顺序记录、故障测距、同步采样等诸多领域获得重要运用。
This thesis selects model GN-80 GPS receiver and SCM to design the sampling device. The high accurate time service is used to synchronize the sample clock signal to realize synchronous sampling.
选用GN-80型GPS接收设备和单片微机进行电力系统状态变量同步采集终端的硬件设计，利用GPS的精确授时作为其同步时钟控制采样脉冲来实现同步采样。
Aimed at the less detection precision and the more errors arising from the common electric parameter detecting method, this paper proposes a synchronous sampling method and radix 2 FFT algorithm.
针对普通电参数检测方法检测精度低、误差大的缺点，提出了一种同步采样法和基2FFT算法。
So how to reduce the error caused by sampling synchronous deviation has already been studied by numerous scholars.
因此如何减小因同步偏差而引起的测量误差成了众多学者关注的焦点。
Synchronous deviation caused by limitation of the timer has already been studied by numerous scholars, however, Synch-sampling in the instance of signal cycle instability has been less discussed.
定时器最小定时引起的同步偏差已有众多学者研究，信号周期飘移下的同步采样则较少有人涉足。
The circuit including the main welding circuit, shows the interface, watch dog circuit, sampling circuit, trigger, synchronous circuit and electromagnetism gas valve etc.
包括焊接主回路、采样电路、触发电路、同步电路、电磁气阀启动电路、显示界面以及看门狗等电路。
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。
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。
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