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	Basics of Bode Plots
		Bode plots for a system consists of 2 plots -- the magnitude of H(s=jw) plotted vs. frequency, and the phase of H(s=jw) plotted vs. frequency.
		In the plots z1 is the first zero shown in H(s), p1 is the first pole, etc. p34 is the pair of complex conjugate poles.
		Although the "bode" function in MATLAB can generate the actual curves very quickly and accurately, the effect of a single pole or zero is shown clearly in an asymptotic plot.
	ece.gmu.edu /~gbeale/ece_421/bode_basics.html (0 words)

	Bode plots
		Bode plots use a linear vertical scale for the amplitude plot, but since dB units are used, the effect is that the vertical scale is plotted according to the logarithm of the amplitude.
		In both the impedance and phase plots, the x-axis is the w axis scaled for frequency in Hz.
		The results are shown on the Bode plot of amplitude that follows, where the straight-line segments are shown as thin dash-dot-dot lines.
	www.tina.com /course/26bode/bode.htm (0 words)

	How to Use WEBENCH - WebSIM - Loop Gain Measurement Test / Bode Plot
		Click "GO." When the simulation is done, the Bode Plot appears showing the frequency response for this circuit.
		The gain (in red) and the phase (in blue) are displayed together.
		The Bode Plot shows the phase and gain on the same graph plotted vs frequency.
	www.national.com /appinfo/power/webench/help/3C4.html (290 words)

	bode :: Functions (Control System Toolbox)
		The magnitude is plotted in decibels (dB), and the phase in degrees.
		Bode plots are used to analyze system properties such as the gain margin, phase margin, DC gain, bandwidth, disturbance rejection, and stability.
		plots the Bode responses of several LTI models on a single figure.
	www.mathworks.com /access/helpdesk/help/toolbox/control/ref/bode.html (0 words)

	Bode log-log plot1 (Site not responding. Last check: )
		The bode plot represents the transfer function of a circuit or system by a log(amplitude or power) vs log(frequency) and a phase vs log(frequency) plot.
		Red line is linear plot of the same function using the same horizontal log scale but a vertical linear scale(0 to 4/3).
		Plots are similar to the above but now the slope of the high frequency line is 40dB per decade and the resonant behaviour gives rise to the characteristic peak in the response.
	circuitscan.homestead.com /files/ancircp/bode1.htm (294 words)

	NationMaster - Encyclopedia: Bode plot
		A Bode magnitude plot is a graph of log magnitude against log frequency often used in signal processing to show the transfer function or frequency response of a linear, time-invariant system.
		Bode's method consists of plotting two curves, the log of gain, and phase, as functions of the log of frequency.
		Bode plots for a system consists of 2 plots -- the magnitude of H(s=jw) plotted vs. frequency, and the phase of H(s=jw) plotted vs. frequency.
	www.nationmaster.com /encyclopedia/Bode-plot (1717 words)

	Feedback Loop and Bode Plot (Site not responding. Last check: )
		Bode's method consists of plotting two curves, the log of gain, and phase, as functions of the log of frequency.
		Usually the gain in decibels, abbreviated dB, and the phase are plotted linearly along the y axis on graph paper that has several cycles of a log scale on the x axis.
		Therefore, the phase curve is often not plotted at all.
	www.oz.net /~coilgun/levitation/bodeplot.htm (721 words)

	Electrical ImpedanceWhat Lies Beneath - Electrical Impedance—What Lies Beneath - Sensors
		If you plot the real part on the X axis and the imaginary part on the Y axis of a chart (the Y axis is negative), you obtain a representation of the impedance at each frequency.
		In this case, the log of frequency is plotted on the X axis, and both the absolute value of the impedance Z and the phase shift are plotted on the Y axis.
		Bode and Nyquist plots are useful in examining the frequency response of the sensor.
	www.sensorsmag.com /sensors/article/articleDetail.jsp?id=313976&sk=&date=&&pageID=2 (641 words)

	Feedback Loop and Bode Plot
		Usually the gain in decibels, abbreviated dB, and the phase are plotted linearly along the y axis on graph paper that has several cycles of a log scale on the x axis.
		On a Bode plot the line will be exact at the break frequency, showing a phase of -45 degrees.
		Therefore, the phase curve is often not plotted at all.
	www.coilgun.info /levitation/bodeplot.htm (721 words)

	Bode
		The Bode plot of the impedance for the electric circuit of Figure 1 is shown in Figure 2.
		Bode characterized this convergence of control and communications as having been a "sort of shotgun marriage." In recognition of his contributions in this field, he was awarded the Presidential Certificate of Merit (in 1948) for his work in the field of fire control under the NDRC of the OSRD.
		Bode engaged in sail-boating on Long Island Sound during his early career in the New York area, and after World War II, he acquired a converted LCT, which he operated on the upper reaches of the Chesapeake Bay adjacent to the Eastern Shore of Maryland.
	www.geocities.com /neveyaakov/electro_science/bode.html (899 words)

	Bode
		A Bode plot of roll angle-to-roll stick force is displayed for the system configuration defined by the FCS block diagram.
		Observe that the Bode plot is, indeed, linear-like.
		The cross-hairs overlying the phase plot (shown in blue) marks the phase angle at the criterion frequency.
	www.flightcontrolsystems.com /ld_bode_plot.htm (413 words)

	Bode' Plots
		Bode plots are the most widely used means of displaying and communicating frequency response information.
		When we introduced Bode' plots, we noted that the vertical scale of a Bode' plot is often in terms of decibels.
		= 10 (or 20 db) on the plot.
	www.facstaff.bucknell.edu /mastascu/eLessonsHTML/Freq/Freq5.html (0 words)

	Bode Servo Analysis (Time Delay)
		Therefore Bode plots can be used to obtain meaningful values for phase margin and gain margin.
		Shown below are the open-loop Bode magnitude and phase plots with the corner frequencies a and b marked on the magnitude plot.
		Plots of r(t) and y(t) are shown, and the Table button provides numerical values of important system parameters and response characteristics.
	www.jhu.edu /~signals/delay4 (455 words)

	Bode plot - meaning of word
		A Bode plot, named for Hendrik Wade Bode, is usually a combination of a Bode magnitude plot and Bode phase plot: A Bode magnitude plot is a graph of logarithm magnitude against log frequency often used in signal processing to show the transfer function or frequency response of an LTI system.
		The magnitude axis of the Bode plot is often converted directly to decibel.
		A typical application of a Bode plot is to show the frequency response of a Electronic_filter.
	www.wordsonline.org /Bode_plot (407 words)

	Bode Plot Wien Bridge Oscillator - Electronic Circuits Projects Diagrams Free (Site not responding. Last check: )
		I don't use EWB or whatever that is, but in general, you need to open the loop to do a Bode plot on an oscillator.
		When you do an AC simulation, which is how you get a Bode plot, all nonlinear components (diodes, in this case) are linearized to have constant parameters (R and C), independent of the instantaneous voltage across them.
		When the circuit is oscillating, it produces a single frequency, you can't get a bode plot from that.
	www.electro-tech-online.com /general-electronics-chat/19104-bode-plot-wien-bridge-oscillator.html (803 words)

	Simple parallel (tank circuit) resonance : RESONANCE (Site not responding. Last check: )
		The plot above is produced from the above spice circuit file (.cir), the command (.plot) in the last line producing the text plot* on any printer or terminal.
		The steepness of a Bode plot curve characterizes a circuit's “frequency response,” or how sensitive it is to changes in frequency.
		A Bode plot is a graph plotting waveform amplitude or phase on one axis and frequency on the other.
	www.allaboutcircuits.com /vol_2/chpt_6/2.html (794 words)

	dsigma, sigma (Robust Control Toolbox)
		The singular values are an extension of the Bode magnitude response for MIMO systems.
		The singular value response of a SISO system is identical to the Bode magnitude response of that system.
		shows the singular value Bode plot of the open loop large space structure in [1].
	www.caspur.it /risorse/softappl/doc/matlab_help/toolbox/robust/dsigma.html (258 words)

	Modern Control Engineering - Bode (Site not responding. Last check: )
		Despite his name, Hendrik Wade Bode was a genuine mid-western American, having been born in 1905 in Madison, Wisconsin, gone to school in Urbana, Illinois and graduated from the Ohio State University in 1926.
		Bode eventually became Vice President of the Bell Laboratories, and when he retired in 1967 he was immediately awarded a chair in Systems Engineering at Harvard University.
		Bode characterised the convergence of control and communications as "a sort of shotgun marriage".
	www.cai.cam.ac.uk /students/study/engineering/engineer03l/cebode.htm (334 words)

	USING MATLAB FOR ELECTRIC CIRCUITS
		Using the Bode command when the transfer function is specified as a ratio of two polynomials.
		An altnerative command to plot the magnitude and phase of a transfer function is:
		In our case subplot(2,1,1) indicates that we want to have two plots on to of each other, and that we have selected the 1st one (top one) as the current one.
	www.seas.upenn.edu /~jan/matlab/Matlab.html (1204 words)

	Bode Step Toolbox: MATLAB functions for control systems design
		The function generates the asymptotic Bode diagram and calculates and plots the phase and the Nyquist diagrams.
		Plot of the phase lag margin is shown by a dashed line.
		The stability margins, the frequencies of the beginning and the end of the Bode step, the asymptotic slope, the nonminimum phase lag, and the system Type are determined during this conceptual feedback loop design.
	www.luriecontrol.com /BodestepToolbox.htm (1584 words)

	Web-Based Control System Analysis and Design
		The most common ways to represent frequency reponse of a system are Bode plot and Nyquist plot.
		A Bode plot shows the relationship between the magnitude and phase values of the open-loop transfer function G(j*w) and input frequency(when the input frequency w goes from zero to infinity).
		The functions below can be used to plot the Bode plot, Nyquist plot, and Nichols chart, to claculate the gain and phase margin of a system or to calculate the value of open-loop transfer function over a given frequency vector.
	www.softintegration.com /chhtml/toolkit/control/FDAnaly.html (0 words)

	CTMS: Frequency Response Tutorial
		To plot the frequency response, we create a vector of frequencies (varying between zero or "DC" and infinity) and compute the value of the plant transfer function at those frequencies.
		As noted above, a Bode plot is the representation of the magnitude and phase of G(j*w) (where the frequency vector w contains only positive frequencies).
		We can also read off the plot that for an input frequency of 0.3 radians, the output sinusoid should have a magnitude about one and the phase should be shifted by perhaps a few degrees (behind the input).
	www.library.cmu.edu /ctms/ctms/freq/freq.htm (2429 words)

	Low-pass filter - RecipeFacts (Site not responding. Last check: )
		The frequency response of a filter is generally represented using a Bode plot.
		The magnitude Bode plot for a first-order filter looks like a horizontal line below the cutoff frequency, and a diagonal line above the cutoff frequency.
		It is the Bode plot and frequency response that show this variability.
	www.recipeland.com /facts/Low-pass_filter (1525 words)

	Bode plot (Site not responding. Last check: )
		Bode plot a mixture of mean distances of the united states.
		Bode the relationship was formulated as a mathematical expression by.
		Bode news bode to predict the existence of another planet between mars and.
	bode.mjtoysonline.com /bode-plot.html (1738 words)

	The Bode Diagram - Tutorial by Thomas Bullock
		Typically, the Bode diagram is shown on log-log graph paper so that a wide range of frequencies and amplitude levels can be diagrammed.
		This Bode plot of A happens to have a gain of 1 (0 DB) at 10 radians/second (approx.
		The real beauty of the Bode diagram is its use in analyzing compensation techniques and the effects of loads and machine resonances.
	www.ctc-control.com /customer/elearning/servotut/bode.asp (0 words)

	Bode Plot
		Magnitude Bode Plot for the Low Pass Filter...
		Example for the construction of a Bode plot...
		Lecture 3 - THE BODE PLOT Conventionally, the magnitude equation is re-written i...
	www.scienceoxygen.com /electrical/242.html (191 words)

	bodeplot :: Functions (Control System Toolbox)
		of frequencies, in rad/s, the Bode response is drawn for the specified frequencies.
		The first bode plot has a phase of -45 degrees at a frequency of 1 rad/s.
		Setting the phase matching options so that at 1 rad/s the phase is near 750 degrees yields the second Bode plot.
	www.mathworks.com /access/helpdesk/help/toolbox/control/ref/bodeplot.html (0 words)

	CTMS Example: Frequency Design Method for DC Motor Position Control
		The main idea of frequency-based design is to use the Bode plot of the open-loop transfer function to estimate the closed-loop response.
		This new bode plot shows that the phase margin is good at around 250 rad/sec, but the gain is too small by about 14 dB.
		This new bode plot shows that the phase margin is about right at a frequency of 250 rad/sec, but the gain is too small by about 18 dB.
	www.library.cmu.edu /ctms/ctms/examples/motor2/freq2.htm (797 words)

	Bode Plots
		A Bode plot is a piecewise straight line approximation of the frequency dependence of the transfer function on a log-log scale.
		It is important to notice that the largest value the Bode plot obtained was 0dB.
		It results because the original expression given by equation (4.8) was characteristic of passive circuits, which are circuits that do not have active gain elements such as transistors or op-amps.
	www.ece.umd.edu /~neil/man/node68.html (553 words)

	Understanding / Reading Bode Plots
		Once we have collected the phase and amplitude response for many frequencies, one of the most intuitive ways to display it is to plot the amplitude response vs. frequency and the phase response vs. frequency and put it on one plot.
		This plot is called the Bode plot after H.W. Bode, a controls pioneer that popularized the chart.
		Now that we have the basics of how to read a Bode Plot and a simple idea of what the plot is telling us, let's look at some examples to get a more in depth understanding of what the Bode Plot is telling us.
	support.motioneng.com /Utilities/bode/bode_15.html (2816 words)

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