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  2. Bode plot - Wikipedia

    en.wikipedia.org/wiki/Bode_plot

    Figure 1B: Low-pass filter (1st-order, one-pole) Bode magnitude plot (top) and Bode phase plot (bottom). The red data curve is approximated by the straight black line. In electrical engineering and control theory, a Bode plot is a graph of the frequency response of a system.

  3. Phase margin - Wikipedia

    en.wikipedia.org/wiki/Phase_margin

    Bode plot illustrating 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.

  4. Pole–zero plot - Wikipedia

    en.wikipedia.org/wiki/Pole–zero_plot

    A pole-zero plot shows the location in the complex plane of the poles and zeros of the transfer function of a dynamic system, such as a controller, compensator, sensor, equalizer, filter, or communications channel. By convention, the poles of the system are indicated in the plot by an X while the zeros are indicated by a circle or O.

  5. Cutoff frequency - Wikipedia

    en.wikipedia.org/wiki/Cutoff_frequency

    Magnitude transfer function of a bandpass filter with lower 3 dB cutoff frequency f 1 and upper 3 dB cutoff frequency f 2 Bode plot (a logarithmic frequency response plot) of any first-order low-pass filter with a normalized cutoff frequency at =1 and a unity gain (0 dB) passband.

  6. Messier 81 - Wikipedia

    en.wikipedia.org/wiki/Messier_81

    Messier 81 (also known as NGC 3031 or Bode's Galaxy) is a grand design spiral galaxy about 12 million light-years away in the constellation Ursa Major. It has a D 25 isophotal diameter of 29.44 kiloparsecs (96,000 light-years ).

  7. Talk:Bode plot - Wikipedia

    en.wikipedia.org/wiki/Talk:Bode_plot

    As I understand the bode plot, is the transfer function as it is on the imaginary axis (s=jw). The question then is, why are poles or zeros on the real axis of the transfer function create corners and phase changes on the imaginary axis, at the same value of frequency as the pole or zero?

  8. Meet “Wicked” Breakout Marissa Bode, the Actress ... - AOL

    www.aol.com/meet-wicked-breakout-marissa-bode...

    Marissa Bode, 24, is the first actor who uses a wheelchair to portray Nessarose, a character who uses a wheelchair, in 'Wicked: Part One' Meet “Wicked” Breakout Marissa Bode, the Actress Who ...

  9. Marginal stability - Wikipedia

    en.wikipedia.org/wiki/Marginal_stability

    A homogeneous continuous linear time-invariant system is marginally stable if and only if the real part of every pole in the system's transfer-function is non-positive, one or more poles have zero real part, and all poles with zero real part are simple roots (i.e. the poles on the imaginary axis are all distinct from one another). In contrast ...