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2. Bode plot - Wikipedia

   en.wikipedia.org/wiki/Bode_plot

   Definition. The Bode plot for a linear, time-invariant system with transfer function ( being the complex frequency in the Laplace domain) consists of a magnitude plot and a phase plot. The Bode magnitude plot is the graph of the function of frequency (with being the imaginary unit). The -axis of the magnitude plot is logarithmic and the ...

3. Butterworth filter - Wikipedia

   en.wikipedia.org/wiki/Butterworth_filter

   Butterworth filter. The frequency response plot from Butterworth's 1930 paper. [1] The Butterworth filter is a type of signal processing filter designed to have a frequency response that is as flat as possible in the passband. It is also referred to as a maximally flat magnitude filter.

4. Nyquist stability criterion - Wikipedia

   en.wikipedia.org/wiki/Nyquist_stability_criterion

   The Nyquist plot for () = + + with s = jω.. In control theory and stability theory, the Nyquist stability criterion or Strecker–Nyquist stability criterion, independently discovered by the German electrical engineer Felix Strecker [] at Siemens in 1930 [1] [2] [3] and the Swedish-American electrical engineer Harry Nyquist at Bell Telephone Laboratories in 1932, [4] is a graphical technique ...

5. File:Butterworth filter bode plot.svg - Wikipedia

   en.wikipedia.org/wiki/File:Butterworth_filter...

   Description. English: The Bode plot of a Butterworth filter with logarithmic axes and various labels. Cutoff frequency is normalized to 1 rad/s. Gain is normalized to 0 dB in the passband. Phase is in degrees because that's typical. The code is kind of kludgy, but makes a good output.

6. File:Bode plot template.pdf - Wikipedia

   en.wikipedia.org/wiki/File:Bode_plot_template.pdf

   File:Bode plot template.pdf. Size of this JPG preview of this PDF file: 423 × 599 pixels. Other resolutions: 169 × 240 pixels | 339 × 480 pixels | 542 × 768 pixels | 1,239 × 1,754 pixels. This is a file from the Wikimedia Commons. Information from its description page there is shown below.

7. Phase margin - Wikipedia

   en.wikipedia.org/wiki/Phase_margin

   Phase margin. In electronic amplifiers, the phase margin (PM) is the difference between the phase lag φ (< 0) and -180°, for an amplifier's output signal (relative to its input) at zero dB gain - i.e. unity gain, or that the output signal has the same amplitude as the input. For example, if the amplifier's open-loop gain crosses 0 dB at a ...

8. Root locus analysis - Wikipedia

   en.wikipedia.org/wiki/Root_locus_analysis

   Root locus analysis. Spirule. In control theory and stability theory, root locus analysis is a graphical method for examining how the roots of a system change with variation of a certain system parameter, commonly a gain within a feedback system. This is a technique used as a stability criterion in the field of classical control theory ...

9. Lattice and bridged-T equalizers - Wikipedia

   en.wikipedia.org/wiki/Lattice_and_bridged-T...

   Lattice and bridged-T equalizers. Lattice and bridged-T equalizers are circuits which are used to correct for the amplitude and/or phase errors of a network or transmission line. Usually, the aim is to achieve an overall system performance with a flat amplitude response and constant delay over a prescribed frequency range, [1]: 128 [2]: 679 by ...