其次，本文分析了非同步采样对电流检测的影响。
Secondly, the impact of the asynchronous sampling on the current detecting is analyzed in this paper.
目的评价多功能呼吸同步采样仪的实际应用价值。
Objective To evaluate the application of the breath synchronous multi functional sampler at workplace.
采用同步采样技术，根本消除了DFT的泄漏效应。
By adopting the synchronous sampling technology, this method has removed the leakage effect that exists in DFT.
然后讨论了利用同步采样消除谱泄漏的原理与方法；
The principle and methods to reduce the spectrum leakage by synchronizing the data sampling with the signal frequency was too given.
相关检测要保证信号同步采样，可以得到最大信噪比。
Related detection must guarantee signal synchronization sampling, and get the biggest signal noise ratio.
软件同步采样是周期电气信号测量中最常用的采样方式。
Synchronous sampling by software is commonly used in digital measurement of periodic electric signals.
在数据采样、计算的软件处理中，采用准同步采样及其算法。
For data acquisition and calculation, a quasi synchronous sampling algorithm is used in the software.
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。
Experiments on a computer prove that the results have the same accuracy of the synchronous sampling method.
并对系统进行了模块化的分析，讨论了影响同步采样性能的因素。
This paper also produces the hardware functional block diagram, carries on the modular analysis to the system, and discuss the influence of the synchronization sampling performance.
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。
Compared with asynchronous sampling mode, synchronous circuit has the advantages of short sampling period and small distortion.
用此公式能够快速的从非同步采样数据得到信号的幅值相位信息。
Some information such as amplitude and phase can be obtained from this formula very fast.
针对周期信号实际的非同步采样，提出一种频谱插值校正的分析法。
A new spectral interpolated compensation analysis method of periodic signals to compensate the spectral leakage caused by non-coherent sampling process is presented.
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。
Secondly, as the characteristics of the ship electronic power system, it is almost impossible to achieve synchronous sampling.
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。
Application of the hardware PLL technology can achieve the synchronous sampling more effectively and help improve the sampling accuracy.
分析基于DSP的电气参数测试仪测量原理，非理想同步采样的误差。
The hardware and software of an electrical parameter meter based on DSP are discussed in this paper.
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。
Software synchronous sampling is widely employed in periodic signal measurement, but measurement errors occur very commonly.
在时序方面采用CPLD来控制，同时实现了频率的跟踪和同步采样功能。
In the time sequence control respect, it USES CPLD to realize frequent tracking and synchronized sampling function.
试验结果表明，该方法可有效地克服干扰信号对GPS同步采样装置的影响。
The results of experiments show that the methods are effective to overcome the influence of jamming on synchronized sampling based on GPS.
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。
Recently the synchronous sampling method based on the GPS has been applied in power system.
在理想同步采样的条件下，提出了一种基于简谐信号复幅度的频率偏差求取算法。
Based on the complex magnitude of harmonic signals and under the condition of ideal synchronous samplings, an algorithm for computing the frequency deviation is proposed.
对某天然气发动机缸内压力信号、齿盘脉冲信号和上止点脉冲信号进行同步采样。
For a CNG engine, the cylinder pressure signal, gear pulse signal and top dead center pulse signal were simultaneously collected.
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。
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.
在非同步采样过程中，信号周期的测量是周期信号数字化测量和分析的重要环节。
In the course of non-synchronization sampling, signal period measurement is an important step in digital measurement and analysis of periodic signal.
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。
The tach signal is sampled synchronously with the vibration signals. The integral period sampling is implemented by software in the forthcoming process.
本文在分析现有同步采样方法的基础上，选用了一种基于采样值序号的数据修正方法。
Basing on analyzing the ways of Synchronic adjustment, an improved means using data amendment based on the number of sample.
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。
ASM samples signal with no strictly equal intervals in order that each sampling point is close to synchronous sampling point.
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。
A weighted algorithm is proposed for reducing effectively the error caused by non-synchronous sampling in active power and power factor measurement.
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。
By establishing the mixed synchronous and asynchronous sampling arithmetic, the power measurement error expressions were deduced.
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。
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.
通过引入GPS定时技术解决了远距离多端同步采样问题，从而使电流纵差保护具有更高的可靠性。
GPS timing technique is used to realize remote multi -terminal synchronized sampling thereby enhancing the reliability of longitudinal difference protection of current.
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