ANP: Animated Nyquist Plot

版本 6.0.1.0 (81.7 KB) 作者: Stefan Rickli
Create a customizable nyquist plot that displays pole/zero contributions.
5.0
(1)
407.0 次下载
更新时间 2017/7/23
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Programmed for educational purposes, this Matlab function draws a Nyquist diagram of any given rational transfer function (including delays) and allows the user to explore it.
As the radius of the D-contour is held relatively small, one can investigate what happens at the origin.
The program also displays the contribution of each pole / zero to the current magnitude and phase.
ANP is capable of handling:
- Vectors with zeros and poles for a SISO system: anp_main([0],[-1,-2,-3+1i,-3-1i])
- SISO rational transfer functions: anp_main(tf(rss(1,1,1)));
- SISO systems with delay: s=tf('s'); anp_main(1/(s+1)*exp(-0.01*s)));
- MIMO systems (computing det(I + L(s)) for a MIMO transfer function L(s)): anp_main(tf(rss(2,2,2)));
Have a look at the file 'anp_usage_examples.m' to see other syntax examples.

Please report any glitches and crashes!

引用格式

Stefan Rickli (2024). ANP: Animated Nyquist Plot (https://github.com/StefanRickli/anp), GitHub. 检索时间: .

MATLAB 版本兼容性
创建方式 R2016a
兼容任何版本
平台兼容性
Windows macOS Linux
类别
在 Help Center 和 MATLAB Answers 中查找有关 Pole and Zero Locations 的更多信息
致谢

参考作品: GUI for Understanding Nyquist Plots

启发作品: Plot Nyquist Didactic

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anp_files

anp_files/@anp_gui

anp_files/@d_contour

anp_files/@tf_processor

anp_files/d_contour_tiny_fcts

anp_files/mimo

anp_files/naclab_min

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版本 已发布 发行说明
6.0.1.0

Bugfix:
- Incorrect calculation of det(I + L(s))
- Scaling factors, e.g. (-2) in (-2)*(s+1)/(s-1), were not taken into account in results summary, causing a mismatch between plot and results TextBox.
6.0.0.0

New: MIMO support: try anp_main(tf(rss(2,2,2)));
ANP will compute show the Nyquist plot of det(I + L(s)) for a MIMO transfer function L(s).
Changed: Detours around poles/zeros on the imaginary axis now go to the left (due to MIMO system properties).
5.2.4.0

Fixed some crashes and glitches.
See release notes on GitHub for more details.

A future major version will change how the detours around poles and zeros on the imaginary axis behave. This is to reflect specialities with MIMO systems.
5.2.3.0

Fixed initialization of variables that are used only in some rare cases.
5.2.2.0

Bugfix (wrong handling of nonconjugate complex poles/zeros), code cleanup, speedups, more code documentation.
See release notes on GitHub for more details.
5.2.1.0

要查看或报告此来自 GitHub 的附加功能中的问题，请访问其 GitHub 仓库。
要查看或报告此来自 GitHub 的附加功能中的问题，请访问其 GitHub 仓库。