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MATLAB Answers

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Frage


MATLAB SISOTool plot options
Hi, Is anyone familiar with plotting in the Matlab SISOtool? For some reason, I cannot access the plot options to change th...

mehr als 12 Jahre vor | 0 Antworten | 0

0

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customizing line thickness for non-plot function graphs
Hi, I'm using the SISOtool control systems design toolbox and want to find a way to get thicker lines for my graphs. In par...

mehr als 12 Jahre vor | 0 Antworten | 0

0

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Frage


besselj and transfer functions?
Hi, I want to use the function call besselj(nu,Z) with Z is some transfer function. I get an error which says that the inpu...

etwa 13 Jahre vor | 1 Antwort | 0

1

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vector to sys transformation for bode plot
Hi, As background, I am trying to use the bode() function. I know that you can extract vectors from a bode(sys) by doin...

mehr als 13 Jahre vor | 2 Antworten | 0

2

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bode plot discrepancy
i am plotting some bode plots, and i found the following discrepancy, and I'm not quite sure what is the root cause of it. My c...

mehr als 13 Jahre vor | 2 Antworten | 0

2

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Frage


square root of a transfer function
Hi, I am trying to find the magnitude of my system 'sys', so i know i have to take the square root of a transfer function in...

mehr als 13 Jahre vor | 0 Antworten | 0

0

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Frage


bode plot overflow?
Hi , Im trying to plot a bode plot but i get the following error. >> bode(gamma20,{1000,1e6}) Warning: The data can...

mehr als 13 Jahre vor | 1 Antwort | 0

1

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Beantwortet
bessel functions
I have solved this issue. I should have started the iterations at 0 instead of 1. Thread closed. Thanks

mehr als 13 Jahre vor | 0

| akzeptiert

Beantwortet
bessel functions
I want to also add that i tried to use the doc besselj and then formula that was presented there. However, I still d...

mehr als 13 Jahre vor | 0

Frage


bessel functions
Hi, I am trying to write a code to calculate the bessel functions of the first kind. The equation is given here: http://en....

mehr als 13 Jahre vor | 4 Antworten | 0

4

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Frage


extracting values from bode()
Hi, I know that you can do the following to get the magnitude phase and w from using the bode() call (which requires transfe...

mehr als 13 Jahre vor | 1 Antwort | 0

1

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Beantwortet
bode() magnitude
SOrry as another question, I noticed that when you do [mag, phase, wout] = bode(a) it draws only about 45 points. Is ...

mehr als 13 Jahre vor | 0

Beantwortet
bode() magnitude
i think i found out the problem. wout must be divided by 2pi to get the correct plot.

mehr als 13 Jahre vor | 0

Beantwortet
bode() magnitude
hey thanks for your answer. i have a followup question. what i did after. so i have [mag,phase,wout] = bode(sys); m...

mehr als 13 Jahre vor | 0

Frage


bode() magnitude
Hi, I Have seen the code [ mag,phase] = bode(sy s) but when i try to see the values of mag, or phase, it returns somethi...

mehr als 13 Jahre vor | 5 Antworten | 0

5

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plotting the frequency spectrum
Hi, I am having trouble plotting the frequency spectrum of a sine wave. For this code, i expect the main frequency component...

mehr als 13 Jahre vor | 8 Antworten | 0

8

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Frage


sine wave plot
Hi, I am having some trouble plotting a sine wave and i'm not sure where i am going wrong. i have t = [0:0.1:2*pi] ...

mehr als 13 Jahre vor | 9 Antworten | 3

9

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writing transfer functions in matlab
Hi, I want to write a transfer function in matlab. I know we usually write in the following way trans = tf([1 0 0], [1 0 1...

mehr als 13 Jahre vor | 3 Antworten | 0

3

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Frage


transfer function multiplication and plotting
hi have some code that looks like TF = tf(num,den,1/(60)); g1 = 10*TF; f = iztrans(g1) but when i do this, matlab ...

mehr als 13 Jahre vor | 1 Antwort | 0

1

Antwort

Beantwortet
multiple bode plots on same graph
unfortunately it is not that simple. my code looks more like g = tf([1 0.1 7.5],[1 0.12 9 0 0]); bode(g) hold on semilo...

fast 14 Jahre vor | 1

Frage


multiple bode plots on same graph
Hi, Does anyone know how to plot multiple bode plots using the "bode" function? I know that the easiest way to do this woul...

fast 14 Jahre vor | 5 Antworten | 0

5

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Frage


noisy bode plot data
Hi, i have some pretty noisy bode plot data that i would like to do a curve fitting on. Does anyone know if matlab has some...

fast 14 Jahre vor | 1 Antwort | 0

1

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Frage


curve fitting in the frequency domain
hi, i am looking to get some frequency response data, in the form of a bode plot. When i obtain this data, i would like to ...

fast 14 Jahre vor | 0 Antworten | 0

0

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Frage


unwrapping the phase in SISO designer
Hi, im using the siso design tool. does anybody know how i can unwrap my phase plot? on a normal bode plot figure, i can j...

fast 14 Jahre vor | 1 Antwort | 0

1

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Frage


normalise a transfer function
Hi, I have an eighth order s-domain transfer function. Is there a way i can normalise this equation in matlab with respect ...

fast 14 Jahre vor | 0 Antworten | 0

0

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Frage


rltool SISO design tool
Hi, i am using the SISO design tool (matlab function rltool) to design a compensator. in my frequency response, i have a re...

fast 14 Jahre vor | 1 Antwort | 0

1

Antwort

Frage


Unobtainable bode plot ?
Hi, I am using the bode( and margin( functions. (both are used to make Bode plots) The issue I am having is with getting...

fast 14 Jahre vor | 1 Antwort | 0

1

Antwort

Frage


cubic equations
Hi all, I was wondering if matlab had a function that can decompose my cubic function into something simpler. My preference ...

etwa 14 Jahre vor | 1 Antwort | 0

1

Antwort

Beantwortet
Matlab compilation inconsistancies
no they do not have the same processor. but doesn't that seem very strange? it would be highly improbable for different people ...

etwa 14 Jahre vor | 0

Frage


Matlab compilation inconsistancies
Hi, im having a strange problem where if i run my matlab script on my home computer, it seems to work fine, but if run on a diff...

etwa 14 Jahre vor | 2 Antworten | 0

2

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