Furthermore, a ring CCO based frequency tuning scheme is proposed to reduce frequency variation.
设计了一种基于环形CCO的锁相环自动频率调谐结构来减小频率偏差。
Fully automatic frequency variation speed regulating NC die cutting production line control system;
全自动变频调速、数控冲切生产线控制系统；
Therefore, the frequency variation due to a factor other than the adsorption of the object is cancelled.
因此，由于探测对象物的吸附以外的原因引起的频率变化被抵消。
The improved algorithm can track frequency variation of the time-varying signal with no extra calculation burden.
对算法进行了改进，在不增加计算量的情况下，实现了对频率变化的跟踪。
PID control is used on the speed control by frequency variation and the temperature pressure control of the Chain gate machine-rotary kiln of the system.
本系统的回转窑直流调速、变频调速以及温度压力控制都采用了数字PID控制。
Digital filtering technique based on least square method multichannel sampling technique and frequency variation sampling technique were used experimentally.
实验应用了基于最小二乘法的数字滤波技术、多通道采样技术、变频率采样技术。
Digital filtering technique based on least square method, multichannel sampling technique and frequency variation sampling technique were used experimentally.
实验应用了基于最小二乘法的数字滤波技术、多通道采样技术、变频率采样技术。
Then the characteristics of frequency variation during the fatigue crack propagation process are simulated by three - dimensional dynamic finite element analysis.
并利用三维动态有限元模拟了点焊接头疲劳裂纹扩展过程中频率变化特性。
The paper studied the issue of low frequency in shallow parts of cross-hole seismic reflection sections using imaging principle and deduced frequency variation factor.
本文利用成像原理对井间地震反射剖面的浅部频率变低问题进行了研究，导出了频率变化因子。
In the solution of high frequency variation of ERP from VLBI observations, the direct solution mode with the consideration of the pole offsets is accordingly recommended.
为此，在基于VLBI资料解算erp高频变化时，建议采用直接求解模式，并考虑岁差章动模型偏差的影响。
Based on T type filter, the new ballast can achieve a wide dimming range with a very narrow frequency variation range, and it can operate with low lamp current crest factor.
基于T型滤波器的调光方法，能在很窄的工作频率范围内实现深度调光，同时具有灯电流波峰因数低的优点。
The conclusion in this paper has been proved by the field data measured from the oil transferring system with frequency variation speed-regulation in Daqing No. 2 Oil Plant.
并利用大庆采油二厂变频调速输油系统的实测现场数据，证实了本文的结论。
The frequency variation of electrical power system would have effect the veracity of electric parameter evaluation, and possibility effect characteristic of automatic equipment.
工频频率变化会影响电量计算的准确性，甚至会影响到电力自动化装置的工作性能。
When vehicles passing ring coil detector, the interaction of vehicle body's substance and ring coil changes resonant frequency of the ring coil and forms a curve of frequency variation.
车辆通过环形线圈检测器时，车体物质与环形线圈相互作用改变了线圈的谐振频率，从而形成频率变化曲线。
The simulated extraction of weak frequency variation signal is carried out with the expressed Resonant frequency locking property when system transits from chaotic to great periodic motion.
利用系统从混沌状态到大周期转变时所表现出的共振锁频性质，进行了微弱频率变化信号的仿真提取。
The simulated extraction of weak frequency variation signal is carried out with the expressed Resonant frequency2locking property when sys2tem transits from chaotic to great periodic motion.
利用系统从混沌状态到大周期转变时所表现出的共振锁频性质，进行了微弱频率变化信号的仿真提取。
The appropriative test menu for "power frequency variation" is normally built in domestic relay protection test instruments, but it should be calculated and set beforehand for imported instruments.
国产继电保护试验仪一般都有针对工频变化量的专用测试菜单，而进口仪器则需预先计算和设置。
For Shanghai power grid, which has large short circuit capacity and short electrical distance, a method using imported instrument to test power frequency variation distance protection is presented.
结合上海电网具有短路容量大、电气距离短的特点，提出了使用进口仪器测试工频变化量距离保护的具体方法。
Still, the mathematical models used to rank results are usually some variation of the common term-frequency/inversed document frequency model, which is well-mapped territory.
尽管如此，用于排序结果的数学模型通常是常用的词频/倒排文档频率模型的变体，而对于这种模型，已有很好的研究基础。
Electrical characteristics may vary depending on changes in temperature and frequency. Please consider this variation when you design circuits.
设计线路板时应考虑到电容器的电性能可能随温度和频率的变化而变化。
Orthogonal Multi-Carrier Modulation(OMCM) is adopted to overcome the frequency selectivity and time variation of low-voltage power line channel.
为克服低压电力线信道的频率选择性和时变性，系统采用正交多载波方式传输信息。
Discriminator: a device that converts a property of an input signal such as frequency or phase into an amplitude variation depending on how the signal differs from a standard or reference signal.
鉴别器，鉴频器：一种将输入信号的某一特征，如频率或相位转变为幅度变化装置，其变化大小因信号与标准或参考信号的不同程度而异。
So, in engineering computation it is acceptable to neglect the directional variation of coherence value with frequency.
因此在工程计算中不计相干函数随频率的变化不会带来太大的误差。
The authors propose an additional control strategy, which changes the power or current order according to the variation of system frequency, thus the power balance of the grid can be implemented.
提出了一种附加控制策略，该附加控制策略根据系统频率的变化改变直流系统的功率或电流指令，从而实现系统功率的平衡。
The frequency of variation and utilization of exogenous DNA introduction in rice breeding were also discussed.
同时讨论了外源DNA导入水稻的变异频率和在水稻育种中的应用前景。
The FM response magnitude and phase variation effects laser on the high speed frequency switching.
FM响应的大小和相位变化影响激光器的高速频率交换。
The results show that the deposit rate, composition and properties of coating change with the variation of duty ratio and pulse frequency.
结果表明，镀层的沉积速率、镀层成分及镀层的性能都随脉冲频率和占空比的变化而变化；
The variation of corner frequency and stress drop with time are analyzed, and the relations between focal parameters are discussed.
分析了拐角频率和应力降随时间的变化趋势，并讨论了震源参数相互之间的关系。
The variation of corner frequency and stress drop with time are analyzed, and the relations between focal parameters are discussed.
分析了拐角频率和应力降随时间的变化趋势，并讨论了震源参数相互之间的关系。
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