1) Nyquist curve
Nyquist曲线
1.
Accurately and quickly drawing the Nyquist curve is the important premise using Nyquist criteria to judge the sta- bility of closed loop system.
准确、快速地绘制Nyquist曲线是利用Nyquist稳定判据判断闭环系统稳定性的前提,文章主要介绍了绘制Nyquist曲线应注意的要点以及几种绘制技巧,以便于方便地判断系统闭环稳定性。
2) two-frequency Nyquist contour
双频Nyquist曲线
1.
Based on nutation stability analysis of a large-inertia and high-speed rotor using two-frequency Bode diagram,a new proof-phase-margin method of cross-feedback parameter design based on two-frequency Nyquist contour is proposed.
在此基础上,提出一种基于双频Nyquist曲线的交叉参数保相角裕度设计方法。
3) nyquist plot
Nyquist图
1.
Based on the investigation for the relationship between the change rate of the phase angle of a Nyquist plot (CRPA) and the poles of the open-loop system or the closed-loop system, the main regions, in which the frequencies of mechanical oscillation modes lie, are determined and their relevant characteristics with the generators are given using the extreme .
研究了电力系统多变量Nyquist图相角变化率与其反馈模型开环和闭环极点间的关系。
2.
In this article,the authors use C++ and C to compile programs to design a set of computer aided instruction software of drawing methods concerned with frequency response characteristics——the NYQUIST plot and the BODE plot.
采用C+ + 和C混合编程设计了一套有关频率响应特性———NYQUIST图和BODE 图绘图方法的辅助教学软件。
4) Nyquist approach
Nyquist法
5) Nyquist rate
Nyquist率
1.
According to Shannon sampling theorem, however, sampling rate should not be smaller than Nyquist rate, which means that UWB signals have to be sampled at a quite high sampling rate and non-bandlimited signals can not be reconstructed exactly.
根据Shannon采样定理，对信号的采样率不能低于Nyquist率，这就意味着对超宽带信号采样需要很高的采样率，而对于非带限信号更是无法通过采样点准确重建原始信号。
6) inverse Nyquist
逆Nyquist
1.
A new method based on the inverse Nyquist curve is given to ascertain the stabilizing gain regions of time delay systems using PID controller.
基于逆Nyquist曲线,提出一种时滞系统在PID控制下确定增益稳定范围的方法。
补充资料：Hesse曲线(代数曲线的)
Hesse曲线(代数曲线的)
Hessian (algebraic curve)
11油限曲线(代数曲线的)【H台自11(.妙如允.抖e);recc咖，T~aaa，即r药pa一吸ee二o‘二p.助蓝] n次代数曲线(司罗玩水c~)的He丈祀曲线就是其极二次曲线能分裂为两条直线的点的集合，也是第一极曲线的二重点构成的集合.n次非奇异曲线的He丈七曲线是一条次数为3伪一2)、类为3(n一2)(3n一7)的曲线.设介O是这条n次曲线的齐次坐标方程，关丘=刁:f/刁xi刁、，则它的He丈犯曲线的定义方程为 !不:关:五，} }五:关:五31=0. }人，人2人3}特征不等于3时的三次非奇异曲线的H既七曲线与这条曲线交于9个通常拐点.因O.H改e(l 844)而得名. A .E.H困阳。B撰
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条