时间标准是由石英钟和广播标准信号提供的。
The time base was given both by a crystal clock and the broadcast standard signals.
因此，对标准信号设计采集电路具有普遍意义。
It follows that the design of collection circuit is universal significance for standard signal.
它可以为各种信号制仪表的校对提供标准信号源。
It can offer standard signal source for various signal standard instrument collate.
标准信号输出，抗干扰能力强，适用于远距离传输。
Standard signal output, anti-interference ability for long-distance transmission.
用晶体振荡器产生时间标准信号，这里采用石英晶体振荡器。
It generates time standard signal using crystal oscillator, here is the quartz crystal oscillator.
介绍一种能对各种不同的标准信号、非标准信号进行采集的通用电路。
Describes a general circuit used to sample for all kind of different standard and non-standard signals.
诊断平台的主要部分是任意信号激励源和高频标准信号激励源的产生。
The main part of the platform is the production of arbitrary signal driVe source and high frequency standard signal driVe source.
天馈系统的标定可利用气球放飞的定标球，接收机的标定可利用标准信号源。
The calibration of antenna system can be carried out using a calibration hung under a balloon, and the calibration of the receiver can be carried out using a standard signal generator.
通过对标准信号的分析验证了系统数据分析的可靠性，达到了预期的设计要求。
The expected design requirement achieve by way of having verified the reliability of system data analysis according to the analysis of standard signals.
采用程控数字波形合成技术，通过单片微型计算机系统实现了工频标准信号源。
The design method of normal frequency standard signal source, which utilizes program control digital wave synthesis technology and achieved by microcontroller was given.
电路输出可以作为标准信号，用来校准医用微分器，作生理电脉冲波形变换的研究。
The output of the oscillator can be used as a standard signal for calibration of the differentiator to employ in research on the transformation of physiological pulse wave forms in medical science.
正弦信号用作标准信号时，要求正弦信号必须有较高的精度、稳定度及较低的失真率。
Sine signals used as standard signal, sine signal requirements must be more precision, stability and low distortion rate.
频率测量一般是通过对被测信号和标准信号计数实现，因此量化误差是引起测量误差的主要原因。
Frequency measurement is usually implement by accounting the measured signals and standard signals, thus quantizing error becomes the main source of measuring error.
介绍了多点平均方法的原理，以标准信号和工程实际信号的应用研究验证了所述方法的实用性和可行性。
The paper introduces the principle of multi-point average method and prove the method applicable and feasible according to the application of standard signal and practical signal in engineering.
给出了现代实用型原子钟的性能指标比较表，和用现代无线电手段传递、比对时频标准信号达到的指标。
The comparison table of modern practical atom clock's performance index is given. The index of transferring and comparing standard time-frequency signal by modern radio means is also listed.
标准信号发生器(图1标准信号发生器框图)的输出信号电平能准确读数，所加的调幅度或频偏也能用电表读出。
Standard signal generator (Figure 1 standard signal generator diagram) of the output signal level accurate readings, the increase in the rate of transfer or shift can also read the meter.
这种算法设置了极性化后的四个周期超声波标准信号，将它与极性化后的超声回波信号进行相关，得到相关值的分布情况。
This arithmetic setup four cycle standard ultrasonic polar signal, and correlated with the ultrasonic received signal. Then the distributing instance can be educed.
本文详细分析了QF1052B型标准信号发生器锁相环部分的基本组成及其工作原理，并提出了对此部分电路的检测方法。
This paper gives a detailed analysis of the principle of the phase lock circuit, one of the most important parts of the QF1052B Standard Signal Generator and provides some methods of checking it.
使用线形馈源时，操作者产生一个标准信号叠加到信号的不同部分，但是结果从不会像使用抛物面碟面得到的那样强大、清晰。
When using a line feed, telescope operators produce a unified signal by adding up the different parts of the signal, but the results are never as strong and clear as they are with a parabolic dish.
在自行设计的动态误差实验系统中，同步采集标准信号（电机脉冲数）和测量信号（光栅脉冲数），实时比对分离出动态误差。
In a self-designed dynamic error experimental system, the standard signal (motor pulses) and the measured signal (grating pulses) were collected synchronously, and isolated the dynamic error.
针对某一确定数据采集系统中小波去噪时的阈值选择，提出以小波神经网络加标准信号来标定去噪阈值的方法，从而提高对信号的去噪性能。
This article proposed a method to mark denoising threshold from study function of wavelet nerve network in order to improve performance of denoising to signals.
针对某一确定数据采集系统中小波去噪时的阈值选择，提出以小波神经网络加标准信号来标定去噪阈值的方法，从而提高对信号的去噪性能。
This article proposed a method to mark denoising threshold from study function of wavelet nerve network in order to improve performance of denoising to signals.
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