After you have parsed all the entries for each feed you get, loop through the key set, looking at the frequency of each word.
解析完取得的每个提要的所有条目之后，循环通过密钥集，查看每个单词的频率。
In frequency synthesis by phase lock, the loop gain will vary by the same amount due to this effect, which generally im - pedes optimization of loop performance.
在锁相频率合成器中，由于压控灵敏度的变化，环路增益也将产生同样大小的变化，这就妨碍了环路特性的最佳化。
Next, according to the weapon system request, application frequency range analytic method, has designed the roll stabilization loop using the PD controller.
其次，根据总体要求，应用频域分析法，设计了PD控制滚转稳定回路；
At the same time using Holzer sensors will be converted into pulse frequency motor speed feedback to the MCU, realize the speed closed-loop control, to achieve speed detection.
同时利用霍尔传感器将电机速度转换成脉冲频率反馈到单片机中，实现转速闭环控制，达到转速检测目的。
It has the higher switching speed and frequency and can be used as the pilot valve for a larger flow rate valve, or as a direct control valve for small flow rate hydraulic loop.
该阀具有很高的切换速度和频率，可以用来作为大流量高速开关阀的先导控制阀，也可以在小流量回路中直接作为控制阀使用。
The estimation of carrier frequency and design of loop parameters are analyzed in this thesis when the two characteristics are considered.
本文对这两个特征下载波同步的两个方面——载波频率参数估计与环路参数设计进行了分析。
The SPLL consists of calculation frequency error, updating loop middle variable, and output control signal.
该锁相环由计算频率误差、更新环路中间变量、输出控制信号组成。
A passive loop filter scheme and the design method of the filter for current charge pump PLL frequency synthesizer chip are given in the paper.
针对电流型电荷泵PLL频率综合器芯片，提出一种称为极值相位裕量的无源环路滤波器方案和设计方法。
Loop frequency locking technique in phase modulation spectroscope technique R-FOG system has been researched.
对基于调相谱检测技术r -FOG系统中的环路频率锁定技术进行了研究。
Each iteration of the loop adds another octave of twice the frequency.
每次循环跌代叠加另一个两倍频率的倍频。
The simulation results show the open-loop and closed-loop frequency responses, output saturation, and the slew-rate of operational amplifier are truly reflected by this model.
仿真结果显示，运放开环与闭环时的频率响应、输出饱和、转换速率等特性得到了真实的反映。
This paper introduces the design thought of a wide band digital frequency synthesis loop. The principle circuit is given.
介绍了一种宽带数字式频率合成环路的设计思想，给出了原理电路。
Then presented the basic structure, phase model, frequency response and performance analysis for noise and spur, of phase locked loop (PLL).
然后介绍了锁相环(PLL)的基本结构、相位模型、频率响应、噪声及杂散性能。
This system indicates that the resonance frequency of servo drive in CNC heavy cutting is equal to the lower one of mechanism and speed loop resonance frequency.
通过对五阶系统的分析表明数控强力切削伺服进给系统的谐振频率取决于机械谐振频率和速度环谐振频率中较低的一个。
The phase jitter of output signal of the PLL( phase locked loop) frequency doubler is analyzed.
定量分析了数字式锁相倍频器输出信号的相位抖动。
The algorithmic relaxes the strict limit on sample frequency, and can guarantee SGUUB(semi-global uniform ultimate boundedness) of the closed-loop system.
该算法对采样频率无严格限制，最终可确保系统闭环半全局一致有界收敛。
This paper gives an analysis of parasitic frequency deviation in the digital phase locked loop, which is one of the important specifications of modern communication systems.
本文分析了数字锁相环路的寄生频偏，它是现代通讯系统中频率合成器的重要指标之一。
The controlling loop includes start-up circuit, frequency tracking circuit, driving signal circuit, and water lack protecting circuit.
控制回路由启动、频率跟踪、驱动信号、缺水保护电路组成。
The relations between stiffness and damping performances and structure parameters of an active magnetic bearing (AMB) system and frequency specificity of the control loop are analysed herein.
分析了电磁轴承系统的刚度阻尼特性与系统结构参数及其控制器频响特性之间的关系。
In order to obtain the dynamic model of the process to be used by robust PID, closed-loop model identification algorithm in frequency domain is researched.
为了获得鲁棒pid参数整定所需的过程模型，进行了闭环频域模型辨识的研究。
The industrial grating signals can be digital frequency multiplication with a phase-locked loop (PLL) controlled by a microcomputer.
用微型计算机控制锁相环(PLL)可对计量光栅信号进行数字倍频。
The adopted control mode of previous common frequency converter is usually of open loop constant voltage ratio, which its control curve is not stable.
早期通用变频器大多为开环恒压比的控制方式，控制曲线不稳定。
Additional negative feedback is provided to set loop gain to unity at the oscillation frequency, to stabilize the frequency of oscillation, and to reduce harmonic distortion.
为了使振荡频率稳定并降低谐波失真，需要加入一个在震荡频率处能够提供单位增益的负反馈路径。
Frequency characteristics calculation of the digital closed loop FOG was conducted based on error analysis between the transfer function and the model.
分析传递函数与FOG模型的误差，得出数字闭环FOG频率特性的计算方法。
The influence of Kerr effect to close-loop digital resonator fiber optic gyroscope based on square-wave frequency modulation was analyzed in theory.
对采用方波频率调制数字闭环谐振型光纤陀螺中克尔效应的影响进行了深入的理论分析。
Using this virtual instrument, the frequency characteristics of both open-loop system and closed-loop system can be measured.
设计的虚拟仪器既适用于对开环系统又适用于对闭环系统的频率特性进行测试。
This design is the use of leading correction principle, finally meet the performance index of a control system open loop gain, phase margin, angular frequency requirements.
本设计利用超前校正原理，最终满足对控制系统性能指标开环放大系数、相角裕量、截止角频率的要求。
The phase-locked system is a closed loop automatic control system that can follow the frequency and phase of the input signals.
锁相系统是一个能够跟踪输入信号频率和相位的闭环自动控制系统。
Utilizing the information observed, a new type of slip frequency controlled torque-speed double closed loop system is developed.
基于观测出的状态信息，构成了转差频率控制的转矩速度双闭环新型变频调速系统。
By adjustment to control signal, systems might realize variable voltage, variable frequency, steady voltage, steady frequency closed loop control.
通过对控制信号的调整，系统可实现变压、变频、稳压、稳频的闭环控制。
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