发生器具有频率精度高，频率范围宽，操作快捷方便等优点。
This generator, has such advantages as high frequency precision, wide frequency range, and quickly facilitate and so on.
选择合适的电路形式，再分析它们的频率精度和噪声抑制要求，以及对信道的线性要求。
Selecting the appropriate circuit model and then analyzing their frequency accuracy, the requirement for the noise suppression and channel linearity.
用高温晶体震荡器、分频器和反向器形成新的工作所需的工作频率逻辑方波，以提高工作频率精度和温度的稳定性；
High temperature oscillator, divider and inverter produce logic square wave for working frequency so that precise frequency and stable temperature are achieved.
介绍了锁相环(PLL)技术和直接数字式频率合成(DDS)技术的基本工作原理，给出了一种提高DDS输出频率精度及减小其相位截断误差的方法。
This paper introduces the theory of the phase-locked loop (PLL) and the direct digital synthesis (DDS), a method to improve the precision of DDS and reduce its phase truncation error is also given.
用来产生光学频率梳的激光的类型对于此频率尺的精度至关重要。
The type of laser used to make the comb is critical to the precision of the ruler.
随着舰船摇摆频率和幅度的增大，失准角的估计精度会进一步得到提高。
As the frequency and range of sway increase, the estimation accuracy of misalignment angles will be further improved.
在某相位编码毫米波雷达系统中，要求很高的目标速度测量精度，因而目标多普勒频率测量电路的设计比较重要。
The design of target doppler frequency measurement circuit is very important in phase coded MMW radar system because of the high measurement precision requirement of target speed.
校频仪的性能，直接关系到传递频率标准的精度。
The performance of frequency calibrator is directly related to precision transfering frequency standard.
结果表明，低通滤波器的截止频率、阶数和类型对检测电路的动态响应过程、检测精度都有很大影响。
The simulation result shows that the dynamic response and the detection precision in detection circuit can be greatly influenced by the cut-off frequency, order and type of low pass filter.
为了在无陀螺捷联惯导系统中应用旋转矢量算法，如何获得载体的相对角位移、并保证载体相对角位移的精度和更新频率是非常重要的问题。
It is very important to apply rotation vector algorithm to the GFSINS that how to attain the relative angular displacement and meet its precision and updating frequency.
在某相位编码毫米波雷达系统中，由于对目标速度测量精度的要求很高，因此目标多普勒频率测量电路的设计也具有比较重要的地位。
The design of target Doppler frequency measurement circuit is very important in phase-coded MMW radar system because of the high measurement precision requirement of target speed.
伺服机构固有频率是影响伺服系统伺服精度、响应能力的重要参数，在设计阶段就需要对伺服机构的固有频率进行计算。
Inherency frequency of servomechanism is to have an influence on the key parameters of servo accuracy and response capability, and demands the calculation of inherency frequency in the design stage.
它能产生频率高、精度高、稳定性好的波形。
It has high level of stability and can produce waveform of high frequency and precision.
由于结构频率测试容易测试并且有较高的测量精度，因此成为损伤识别中广泛应用的模态参数。
The variation of structural frequency before and after the damage is believed to be a most available and widely used modal parameter because of its easy testability and high measure precision.
其插补精度与最大进给速度、机床系统的脉冲当量、插补周期，以及脉冲发生器的输出脉冲频率有关。
The interpolation precision is correlated with Max feed rate pulse equivalent of CNC cyc of interpolation and output impulse frequency of pulse generator.
本文介绍了CS5460 A芯片的特点、工作原理及其在高精度工频电压、电流、功率、功率因数、频率表中的应用。
The paper introduces the technique feature and the operation principle of chip CS5460A, and its application in high-accuracy power frequency voltage, current, power, power factor, frequency meter.
修正后的信号强度和频率估值有相当高的精度。
After correction, the estimates of signal amplitude and frequency have high accuracy.
为提高扫描过程中频率的精度和准确度需要选择合适的扫描信号和检测方法。
We should choose the suitable sweep signal and good test method to improve the precision and accuracy of frequency.
以时差法为例，分析了超声波探头中超声射线入射角及振荡频率对测量精度的影响，给出了探头的选择原则。
This paper analyzes the influence of incidence and oscillation frequency of ultrasonic sensor on measuring accuracy. The option principle of ultrasonic sensor is presented.
文中以时差法为例，分析了超声波换能器中超声射线入射角及振荡频率对测量精度的影响，给出了换能器的选择原则。
The paper analyzes the influence of incidence and oscillation frequency of ultrasonic sensor on measuring accuracy and the choose principle of ultrasonic sensor is presented.
系统高精度、低成本，适用于任何状态的导航以及高频率的输出，可以用于诸如载体跟踪、航空、自动采矿以及精细农业等广泛的应用领域。
Due to its high accuracy, low-cost, full navigation states, and high output rate, the system has wide applications, such as vehicle tracking, aviation, automatic mining, and precise farming.
给出了数据采样频率是物理量变化频率10倍、8倍和6倍以上时测量精度的适用范围。
And it gives the suitable limits of measurement precision respectively, when the sampling frequency of data is 10 times. 8 times and 6 times of the frequency of physical change.
提高了频率采集的精度等级，增加了信号及电源防雷击和抗电磁干扰功能模块。
The accuracy grade of frequency collection is improved, the function modular to prevent lightning and electromagnetic disturbance of signal and power source is added.
文中算例表明，在不增加自由度的前提下采用修正单元进行自由振动分析，结构的频率计算精度可以明显提高。
The numerical results in the paper show that the modified element is used to analyse the free vibration, and the accuracy of the structural frequency is greatly raised at no increasing the freedom.
传统的频率特性测量方法，在低频时，测量精度较差，且非常费时。
When traditional method is used for measurement at low frequency range, measuring precision can not be guaranteed and measuring is time-consuming.
试验结果表明系统在不增加测试时长情况下能有效提高斜拉索固有频率估计的精度，从而能得到精确索力值。
Experiment result also proves that system can improve the measuring precision effectively and then get the more accurate cable force in the case of not increasing the measuring time.
文中详细地分析了被测信号的频率和计数脉冲的频率与测量精度之间的关系。
This paper particularly analyze the relation between frequency of measured signal and frequency of count pulse on measuring precision.
由于电力信号基波频率的测量直接影响到谐波分析的精度，提高基波频率的测量精度非常必要。
It is necessary to improve the measuring precision of electric signal's base frequency, which directly influences the precision of its harmonic analysis.
由于现有瞬时测频技术精度的限制，无法直接对其频率跟踪精度进行检定。
For the limitation of the accuracy of IFM technology, the frequency tracking accuracy can't be examined directly.
由于现有瞬时测频技术精度的限制，无法直接对其频率跟踪精度进行检定。
For the limitation of the accuracy of IFM technology, the frequency tracking accuracy can't be examined directly.
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