Beantwortet
I can't place the fft curve at the signal frequency exactly. There's been a slight deviation of the fft peak at that frequency
The code has fs = 80*fmax; but the TA vector is space by dt, so fs should be fs = 1/dt;

mehr als 2 Jahre vor | 0

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Are polyshape vertices preserved reliably without floating point errors?
Hi Matt, The doc pages for intersect, union, subtract, and xor all show a second output (ShapeID) that indicates if a vertex i...

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I can't place the fft curve at the signal frequency exactly. There's been a slight deviation of the fft peak at that frequency
fmax=1e9; %maximun frequency of the signal fs=60*fmax; ts=1/fs; %time increment T=10e-9; ...

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I get a robust controller result using musyn that is empty; "Krob = [ ]".
Hi Peter, My compliments on the quality of and effort put into this post! Based on only a quick inspection, I have the followi...

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Why does my Transfer function overshoots
Define the plant zeros = roots([0.075, 1, 1]); poles = roots([1, 3, 5, 0]); Gs = zpk(zeros, poles,1); As was pointed out by ...

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different color to plot
There may be fancy way to do it with a single line (or other type of) object, but it's easy to do it with two t = 0:.01:1; y =...

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How to fix conjugated chirp signal frequency shift in spectrogram
Conjugation in the time domain corresponds to reversal and conjugation in the frequency domain. To get a basic idea of what's g...

mehr als 2 Jahre vor | 0

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How to change frequency range doubling of Complex-valued Chirp Signal Spectrogram to match the Real-Valued Chirp Spectrogram
No, it appears there's no way to change that if you want to have spectrogram make the plot. Can use ylim to alter the plot afte...

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why is NaN not of 'NaN type' in Simulink?
It looks like the block labeled "assertion1" is a Compare To Constant block. Instead use a Relational Operator block, which sup...

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Dynamically generate a simulink block
This doc page Dynamic Masked Subsystem is probably what you're looking for. Not sure if the number of inputs or outputs can be c...

mehr als 2 Jahre vor | 0

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Aerodynamic forces and moments
The doc page Aerodynamic Forces and Moments states that the outputs of the block are: Port_1 — Aerodynamic forces Aerodynamic ...

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What's the correct syntax to set-up discrete convolution ?
The variable B contains one or more NaN values. Use isnan to find which ones and then review the the corresponding inputs to be...

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How to interpret the amplitude of impulse() results
It sounds like the code needs to account for the difference between the convolution sum, as computed by conv, and the convolutio...

mehr als 2 Jahre vor | 0

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Cannot compute the root locus of models with complex data
Well, you can always loop through values of K and for each value of K solve for s that satisfies den(s) + K*num(s) = 0 and plo...

mehr als 2 Jahre vor | 0

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How to make double array representation as complex array with null imaginary number ?
In general, use complex A = rand(2); C = complex(A,0) If you have multiple real arrays stored in cells of a cell array, you c...

mehr als 2 Jahre vor | 1

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Running main model with fixed step solver and subsystem with variable step solver
R2022a introduced the concept of a "Local Solver" when using referenced models, which might be what you're looking for. This blo...

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How to import multiple .mat files to workspace?
Why use the -ascii option to load a .mat file? If that's not the problem, please edit your question by copy/pasting the entire e...

mehr als 2 Jahre vor | 0

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how to compute duration of the signal
If a Matlab vector x is a subsequence of a discrete-time signal x[n], and if it's assumed that x[n] = 0 for all values of n outs...

mehr als 2 Jahre vor | 0

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How to manually simulate linear system without lsim
Hi Valeriy, As indicated, the system in question is a differential equation model of a continuous-time sytem. This line of co...

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Identified linear system contribution of input is zero
The commands do influence the position of the motor through the dynamics as described by the differential equation. The output o...

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Comparing coefficients and solving equation
syms x a b eqn = x^2 + 2*x + 5 == (b+4*a)*x^2 + (5*a+b)*x + (-b+2*a) cleft = coeffs(lhs(eqn),x,'all') cright = coeffs(rhs(eqn...

mehr als 2 Jahre vor | 0

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reproduces the audio signal after sampling!!!
Hi Vu, I wasn't familiar with derivative sampling, or generalized sampling, until I saw your post. After a bit of reading, mayb...

mehr als 2 Jahre vor | 1

Frage

How to Convert a Scalar Struct with Vector Fields to a Vector Struct with Scalar Fields?
I have a scalar struct S with each field a row vector of the same number of elements. S.x = [1 2]; S.y = [10 20]; I want crea...

mehr als 2 Jahre vor | 3 Antworten | 0

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Antworten

Frage

Can hgtransform be Used with a Constant Line Object?
This code runs fine on my machine with 2022a. Generates an error here with 2024a. Didn't see anything in the release notes to su...

mehr als 2 Jahre vor | 1 Antwort | 1

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Antwort

Beantwortet
Plot a vector with a given angle against the y-axis
Something like this? Note that the line won't won't resize if the axes are resized. If you want something like that, you might...

mehr als 2 Jahre vor | 0

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reproduces the audio signal after sampling!!!
The Fourier transform of each of those impulse responses can be found as follows. See also this thread for related discussion. ...

mehr als 2 Jahre vor | 0

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copy subplots within same figure
Hi William, Use the subplot command as shown below to get the new axes aligned with the old. The legends need to be copyobj'd a...

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Trying to add Butterworth filter after fft to obtain only some of the original signal.
Hi Alejandro, The input to filter should be the time domain sequence to be filtered, not its Fourier transform. So I guess tha...

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How to simulate control loop with sustained oscillation
Hi banghyun jo, Describing function analysis relies on the Nyquist plot of the open-loop system, not the closed-loop system. If...

mehr als 2 Jahre vor | 0

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Matrix versus Scalar Input Into Functions Using Symbolic Toolbox
Hi Sam, syms x A = [2 4 ; 1 5] ; % Polynomial q(x) = x^2 + 2*x + 15 ; As was noted above by @Voss and @Ayush Anand and @Ni...

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