Any significant form of delay, whether delay of all samples or one sample relative to the other, can significantly degrade the quality of the voice signal recreated at the far end of the transmission.
任何重大延误形式，不论所有样品或延误样品相对于其它一、可以大大降低质量的声音信号重现尽头传送。
MethodsAnalyze spectrum of the sample signal and propose the formula of common sample frequency in low speed.
方法分析了带通采样信号的频谱和规律，导出了低速采样频率的选取公式。
The piezoelectric equation is then used to obtain the output signal of the transducer coupled to the sample.
再由压电方程得出与试样直接相耦合的压电换能器的输出信号。
The general analytical expressions of PTR signal for multilayer samples are derived. The optically opaque three-layer sample is analyzed in details.
从理论上推导了一般情况下多层样品PTR信号的解析式，分析了光学不透明三层样品。
Sample synchronization is a basic problem whether Software Radio Receiver systems can demodulate the received signal correctly, it also affects the performance of the system.
软件无线电接收机是否能正确的解调接收信号，样值同步是需要解决的基本问题之一，其好坏将直接影响系统性能。
The theories of the sample integral and the cross - mutuality for the sinusoidal signal phase difference estimation are analyzed, and the digital simulation experiment is carried out.
对正弦信号相位差估计的取样积分和互相关两种方法的理论进行了分析，并进行了数字仿真实验。
The result is accord with geological sample and sediment chart, so this method can be applied on sediment classification of narrow-band pulse echo sound signal.
分析结果与地质采样结果及海图均吻合，说明本文提出的方法应用于窄带脉冲信号的海底底质分类是适用的。
The bandwidth of target signal after stretch processing and narrowband filtering, the data sample ratio and computing burden are reduced greatly and the method is easy for engineering implementation.
经拉伸处理和窄带滤波的目标信号带宽大大降低，数据采样率也大大降低，因此计算量减小，利于工程实现。
While digital frequency leading implements capture of target frequency through the operational processing of received signal sample sequence by FFT, it has obvious superiority.
数字式频率引导采用对接收信号采样序列进行FFT运算处理实现对目标的频率捕获，具有显著的优越性。
The results show that there are inverse proportional relationship between full wavelength at half maximum(FWHM)of the LIV signal and critical sample rate of data acquisition card.
对信号响应的波形特征进行分析和讨论，实验得出LIV信号半峰全宽与数据采集卡临界采样率成反比例关系。
Period Jitter: refers to the deviation in cycle time of a signal with respect to the ideal period over a random sample of cycles.
周期抖动：指的是信号的周期时间的随机采样与理想周期之间的差异。
The signal exhibited by the released reporters may then be used to indicate the presence or quantity of an enzyme or enzyme inhibitor within the test sample.
由释放的报道分子所显示的信号可用来指示试验样品内酶或酶抑制剂的存在或数 量。
Based on the sample entropy, the scale factor is introduced to multi-scale entropy. Thereby, the complexity of signal under different scale factors can be analyzed by multi-scale entropy.
多尺度熵是在样本熵的基础上通过引入尺度因子，从而能够分析信号在不同尺度因子下的复杂性。
An engineering sample with intelligent data collection control series modules to support field bus and remote control of railway signal system is introduced.
介绍了一个支持现场总线的智能数据采集控制系列模块成功运用于铁路信号系统的远程控制的工程实例。
For example, the characteristics of data acquisition system for sample oil pressure signal of an injection system are of high speed, and special synchronization.
如对喷油系统油压信号的采集，即需要具有高速采集数据的性能，又要能满足特殊同步的要求。
Selection of proper parameters on the basis of this conception to sample the signal can realize the phase correlation between the sampling signal and the measured signal.
利用这一概念选取合适的采样参数对测量信号进行采样，可实现采样信号同待测信号相位相关。
The conclusion is that only when the minimum sample rate is more than the double of the band of the signal, can the signal been resumed without distortion.
得出结论：只有抽样信号最低抽样率大于两倍信号带宽时，才能保证信号的无失真恢复。
In this spectroscopy, both laser frequency and Zeeman effect of a sample are modulated, and then the signal with high signal to noise will be obtained by double demodulation.
它同时对激光频率和样品的塞曼效应进行调制，然后通过双解调来提取微弱的光谱信号。
To adequately preserve the shape of your signal, you should sample at a much higher rate than the Nyquist frequency, generally at least 5 or 10 times the maximum frequency component of your signal.
为充分保证信号的波形不失真，你的采样频率应比Nyquist频率高出许多，通常是你信号最高频率的5到10倍。
Though examples of common signal and sine signal, by the frequency spectrum graph and theoretical analysis, the minimum sample rate of the sampling theorem is made clear.
以一般信号和正弦信号为例，通过理论分析和频谱图示意，对抽样定理中最低抽样率的取值进行了明确的说明。
The basic theory of IF signal processing, such as sample theory, quartered demodulating technology, filtering, draw-off and interpolating theory is discussed.
然后介绍了数字化中频处理中的采样理论、正交混频解调、滤波抽取等基础理论。
On the base of them, a new synchronous sample method for acquiring signal is presented. With the new method, the high rate and accuracy can be reached.
在此基础上提出了一种新的交流信号同步采集方法，适合于对采样率和采集精度要求较高的场合。
It realizes the functions of signal sample, processing, displaying and outputting, parameters setting and so on.
实现了火焰信号的采集、处理、输出显示、参数整定等功能。
The identification accuracy is related to the order of the fitting model, sample interval and sample number, and also affected by signal noise, which shows the method should be improved.
辨识精度与算法中拟合模型阶数、采样时间间隔和采样总数有关，并受信号中噪声的影响，需加以改进。
The output signal of the sensor is the sinusoidal signal with intermediate frequency. To sample and process this signal, a data collection circuit that centers on P89C51RD2 single chip is designed.
传感器输出的检测信号是中频的正弦电压信号，为采集和处理该信号，设计了以P89C51RD2单片机为核心的数据采集器电路。
Training sample set inevitably contains gross error in input signal reconstruction of nonlinear multifunctional sensor.
在非线性多功能传感器的信号重构过程中，训练样本集不可避免地夹杂粗差数据。
With the fixed stiffness, sag, temperature and so on, survey precision of the tension force of the cable is determined by the sample rate and the sample length of the vibration signal.
在刚度、垂度及温度等边界条件一定的条件下，拉索索力测量精度主要由振动信号数据采集的频率和采样时间决定。
From this spectrum, one or more low-frequency signal components that are characteristic of the sample being interrogated are identified.
从该谱上识别一个或多个表征该被询问样本的低频信号分量。
The length of the mobility tube and the electric field intensity have been adjusted to optimum, and the relationship between the drift signal and the sample concentration has been studied.
对离子迁移谱系统进行了优化，得到了最佳的迁移管长度和管内电场强度；同时研究了迁移信号和样品浓度的关系。
To prove the method, the detailed way of making the on-spot sample device hardware and its software framework is discussed and the special method of signal processing is also introduced.
为了验证该方法，本文还讨论了制作现场样机的硬件设备的详细方法和样机的软件开发编制的流程，对信号处理的特殊方法也作了介绍。
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