Respondida
Getting wrong frequency from fft compared to curve fit
Hi @lior fridman Assuming you're only interested in the magnitude of the DFT, it looks like everything is correct except for no...

más de 3 años hace | 0

Respondida
Why am I receiving this error?
Assuming you want a numerical evaluation, check out these doc pages: log , exp

más de 3 años hace | 0

| aceptada

Respondida
Implementation of varying-order integrator block in Simulink
Thanks for the link to the Varying Transfer Function block. I'm still not 100% sure what your're looking for. But maybe someth...

más de 3 años hace | 0

Respondida
about setting setBlockParameter (blkParam, paramVal)
A1. Gain and Position are block parameters. Position is a paramter that is common to all blocks. More info here Common Block Pro...

más de 3 años hace | 0

| aceptada

Respondida
Can I believe the values of these large integers?
What happens if you change this line to work in symbolic world? It will be slow .... (couldn't run here, exceeded the 55 second ...

más de 3 años hace | 0

Respondida
How can I triple integral the matrix k between -h/2 to h/2, -b/2 to b/2, -a/2 to a/2 wrt. z,y,x respectively?
Hi Ahmed Try int clc clear all E=70*10^6; v=0.3; p=50*10^3; h=0.01; a=0.5; b=0.5; syms x y z B=-h*[6*x*(b-2*y)/(a^(3)...

más de 3 años hace | 0

Respondida
Is there a way to change the value of the transfer function through MATLAB & Simulink?
Hi 영탁 한, My interpretation of your question is that you really have a second order, time varying system. Such a system can't be...

más de 3 años hace | 1

| aceptada

Respondida
Unable to perform assignment because the indices on the left side are not compatible with the size of the right side.
At line 45 the variable Ybuskron is a 2 x 2 matrix and E(i) is a 1 x 1 scalar. So their product is a 2 x 2 matrix, which is tryi...

más de 3 años hace | 0

Respondida
Digital Signal Processing Filters
Hi Mustafa, Not checking all of the code in detail, but I did notice that the fft plots don't look correct. They should be: f ...

más de 3 años hace | 0

Respondida
Tuning a PID controller to desired Overshoot, settling time and rise time
The CST offers some tools to do this. Start from this doc page. Or from this doc page if you want to use Simulink. Here is an ...

más de 3 años hace | 0

Respondida
convolution of two syms signal
If you know the definition of the convolution integral, try to use int to compute it.

más de 3 años hace | 0

Respondida
How to plot the Eular Transformation?
The Control System Toolbox, for unknown reasons, doesn't support the forward or backward Euler transformations. I'm not aware of...

más de 3 años hace | 0

| aceptada

Respondida
unable to find median of a set of signals in simulink
Very surprised that base Simulink doesn't have a block to compute the median of signal. If you don't have access to the DSP Syst...

más de 3 años hace | 0

Respondida
How to define this variable on MATLAB
Hi @Yakoob We can use the Symbolic Math Toolbox as one option Set up the equations r0=0.05; k1=0.5; mu=0.5; rho=0.5; k2=0...

más de 3 años hace | 0

Respondida
How does freqresp work with systems with internal delays?
Hi Philippe, As best I can tell, the functional process is as follows. Referring to diagram under the "Description" of setDelay...

más de 3 años hace | 0

| aceptada

Respondida
solve equation with symbolic variables
Hi Milan With a mix of syms and anonymous functions and a call to fsolve using a symbolic equation, I wasn't sure if the desire...

más de 3 años hace | 0

Respondida
Why isn't low pass filter centered around zero?
Hi Paul, The fft length is odd, so the computation of xFreq needs to be as shown below. N=120; Ap = 0.01; Ast = 80; Rp = (1...

más de 3 años hace | 1

| aceptada

Respondida
How do you do a sine transform in Matlab?
It appears that the sine transform can be computed from the Fourier transform. Example with a simple function syms t w xi real...

más de 3 años hace | 0

Respondida
How to determine and adjust the x axis after taking the 1D FFT?
Hi L'O.G. Let Y be the output of fft (with or without zero padding) Let NFFT = numel(Y) Let Ts = dt = t(2) - t(1) and Fs = 1/...

más de 3 años hace | 0

Respondida
Different margins using Bode and allmargin
allmargin returns the gain margin in absolute units, not dB. Converting the allmargin result to dB yields: 20*log10(11.1664) m...

más de 3 años hace | 0

Respondida
lowpass butterworth magnitude response
Hi Võ The zp2sos command in the code returns a second output, g, which is a gain that has to be applied to the filter response....

más de 3 años hace | 0

| aceptada

Respondida
Last graph is plotted with no data points(figure 3) dont know why
Hi Gophela, See below for probable error in calculation of Signal_Attenuation and correction. clc; clear all; close all; % ...

más de 3 años hace | 0

Respondida
Too many input arguments: error in ODE45
Hi Shreshtha, The function handle input to ode45 needs to take two arguments: t and x. Also, the matrix multiply defined in fun...

más de 3 años hace | 1

| aceptada

Respondida
Symbolic Toolbox Solving for Zeros
Hi Ryan, fzero is not used in the Symbolic Math Toolbox. Instead, check into using solve or vpasolve for this problem.

más de 3 años hace | 1

Respondida
I want to loop over these non linear equations
Hi nour From only the perspective of getting the code to run ... It looks like the code will run if, at a minimum, we don't ke...

más de 3 años hace | 0

| aceptada

Pregunta

Why Does get_param(gcb,CompiledPort*) Return Weird Results for Several Object Parameters ?
I have the following very simple model that has been compiled and simulated in Normal mode Verify the Constant block is selec...

más de 3 años hace | 1 respuesta | 0

1

respuesta

Respondida
Convolution example: inputA[64],InputB[64] and Output[128]
Hi AndyK, I'm going to assume that N = na + nb - 1, where na and nb are the lengths of a[n] and b[n] respectively. Under this a...

más de 3 años hace | 0

Respondida
calculate and fill an area between a line and a curve
Hi Enzo, I think fill is what you might be looking for. Assuming that (x1,y1) and (x2,y2) are points on the blue data curve as ...

más de 3 años hace | 0

Respondida
Plotting a multivariable function, that also has a summation
Hi Ali, Another approach that you might be interested in, which is less code but requires more memory, is to use an anonymous f...

más de 3 años hace | 0

Respondida
How to increase quiver density
Hi Joseph, Use a finer mesh for setting up X and Y: n = 3; m = 1; beta = 3; gamma = 1; alpha1 = 1; alpha2 = 1; startv = ...

más de 3 años hace | 1