Methods of analyzing the dynamic performance of automatic control system can include time domain analysis, frequency domain analysis and stability.
自动控制系统的动态性能的分析方法包括时域分析法，频域分析法，及稳定性判据。
Frequency spectrum analysis and the crossing point of voltage are adopted to control the corresponding filter branch switch.
采用了频谱分析法和电压过零点控制相应的滤波支路投入运行。
Based on analysis and discussion to normal design of frequency speed change control for cement plant, optimized design plan for general frequency speed change control has been put forward.
以水泥厂常见的变频调速控制设计为例，在对其认真分析讨论的基础上，提出了通用变频调速控制优化设计方案。
To obtain the ability to perform analysis and design of linear feedback control systems, using both time and frequency domain techniques.
获得能够利用时域和频域技巧，分析和设计线性回馈控制系统的能力。
To pump as an example, affecting its speed range, energy-saving effect of some of the major factors, was symptomatic of analysis and, on this basis that the scope of application of Frequency Control.
以水泵为例，针对影响其调速范围、节能效果的一些主要因素，进行了对症分析和探讨，在此基础上指出了变频调速的适用范围。
But in the analysis, influence of different frequency input on control effect, and relation between the control effect and natural vibration frequency of the structure can't be solved.
但不同频率地震波输入将对建筑物减振效果产生怎样的影响，减振效果和结构物本身自振频率是怎样的关系，这些是以往的时程分析所不能解决的。
The result of analysis and experiment show that the proposed method can be applied in the AC variable frequency speed control system which is nonlinear, fast changefully and difficult to be modeled.
理论分析与实验的结果表明：该方法对异步电机变频调速这一非线性、快速多变、难于建模复杂系统的控制是实用和有效的。
According to wave analysis and theoretical calculation of PWM inverter with delay-loop current tracing, this paper proposes a frequency control system with current tracing SPWM.
通过对滞环电流跟踪型pwm逆变器的波形分析和理论计算，提出一种固定开关频率型电流跟踪SPWM变频调速系统。
DSO covers the theories of signal pretreatment, data collection, frequency detection, automatic control, analysis of frequency spectrum and data processing.
其中涉及到信号预处理、数据采集、同步触发、测频、自动控制、数据显示和处理、频谱分析等诸多方面的理论。
Link quality analysis (LQA) is a key measurement process in adaptive frequency hopping (AFH) communication systems and results in adaptive frequency and power control.
信道质量评估是自适应跳频通信的关键技术，其实时评估结果为自适应频率控制和自适应功率控制提供依据。
Correlation analysis demonstrated that long disease course, abdominal obesity, low family incomes and low frequency of blood glucose monitoring were related to poor control of blood glucose.
相关分析显示：病程长、合并腹型肥胖、家庭收入低、监测血糖频率低与血糖控制不良有关。
Through analysis of the stability of NanBian power supply system in a steel enterprise, under-frequency load-shedding plans and regional security and stability control plans are adopted in this paper.
本文通过对某钢铁企业南变电力系统的稳定性分析，给出了低频减载和区域安全稳定控制两种方案。
Through analysis of the stability of NanBian power supply system in a steel enterprise, under-frequency load-shedding plans and regional security and stability control plans are adopted in this paper.
本文通过对某钢铁企业南变电力系统的稳定性分析，给出了低频减载和区域安全稳定控制两种方案。
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