Risposto
What is default Mu for Vehicle Body 3 DOF block?
As best I can tell, if the [mu_r, mu_f] vector is not specified externally, then the block uses the parameter specified in Nom...

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Risposto
Why the filter has no output?
The function filter is only applicable for a discrete-time filter, not an analog filter. If you want to simulate the output from...

circa un anno fa | 0

Domanda

Why Do digitalFilter Object Functions Ignore the Filter's SampleRate Property?
Design a low pass filter lpFilt = designfilt('lowpassiir','FilterOrder',8, ... 'PassbandFrequency',35e3,'PassbandRipp...

circa un anno fa | 1 risposta | 0

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Risposto
Unable to create Bode plot of H(s)=(s+10)/(s(s+5)^2)
As shown after the edit of @Walter Roberson, the code runs fine here. Do you see the same output after executing the following c...

circa un anno fa | 0

Risposto
How can I make the following heatmap smoother while preserving the contours outlined by the green line?
If you don't need specific features of heatmap, perhaps a pcolor with shading would be useful load DataMe pcolor(flipud(TPP)),...

circa un anno fa | 0

Risposto
In simulink, how can I make a parameter of a simulink block continuously updated during the simulation time by MATLAB function block?
Hi Yeonghoon, One option to try would be the Parameter Writer. Don't know if the particular block and block parameter in questi...

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Risposto
Why does this integral of a relatively well behaved function return NaN values?
Hi Ryan, I think that individual terms in the integrand blow up to inf when evaluating in double precision. u = 10^6; % unit c...

circa un anno fa | 1

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Risposto
ECEF 6DOF block - integrator initial conditions
Hi Thomas, Are you referring to 6DOF ECEF (Quaternion)? What exactly do you mean by the "body rate integrator"? Are you loggin...

circa un anno fa | 0

Risposto
Filter Z Transform Manipulation
Define a filiter in Signal Processing Toolbox (SPT) and plot the frequency response fc = 300; fs = 1000; [b,a] = butter(6,fc/...

circa un anno fa | 0

Risposto
discontinuous differential equations using inverse z transform?
It appears the goal is to derive a difference equation from the corresponding, discrete-time, transfer function. Define the tra...

circa un anno fa | 0

Risposto
Problem using variable='z^-1' in Z transform with Z^-1 format
When specifying a tf in with Variable='z', the num and den are interpreted as being coefficients of descending powers of z num=...

circa un anno fa | 0

Risposto
How do you get a symbolic answer for this z transform in MATLAB
With the default symbolic preferences sympref('default'); We have heaviside(0),disp(char(ans)) So the discrete-time unit ste...

circa un anno fa | 0

Risposto
How to convert state space to transfer function.
See this answer for how to represent the state space model in the Control Systems Toolbox.

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Risposto
How can I plot a correct fft of cosine wave?
The problem statement is to plot the Fourier Transform of a cosine (cos(2*pi*t)), but sampled with sample frequency of fs=12Hz. ...

circa un anno fa | 0

Risposto
Adding 0 value place holders to string array
s= [ "0, 74, 46, 94" "7, 64, 8" "8, 50, 32, 70" "6, 43" "3, 55, 47"] c = count(s,",") s = arrayfun(@(s,c) join([s,repmat...

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Discussion

Would a General Hold/Release Functionality be a Good Feature for the Symbolic Toolbox?
The int function in the Symbolic Toolbox has a hold/release functionality wherein the expression can be held to delay evaluation...

circa un anno fa | 1

Risposto
Problem with ctrbf() and its answer
Check the doc page ctrbf to see how A_bar etc. are arranged in terms of the uncontrollable and controllable portions.

circa un anno fa | 0

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Open loop stability: Bode - Pole zero plot mismatch
Use the open-loop system developed by @Arkadiy Turevskiy in this comment sys=zpk([2.4*10^9*j -2.4*10^9*j], [-0.0000001 -11.5*10...

circa un anno fa | 0

Risposto
Complex variable substitution using Symbolic Toolbox no working as expected.
% Define symbolic variables syms R81 R79 R80 C37 C67 T z fs %complex syms w s % complex % Define the frequency-domain transfe...

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Risposto
How to get PD parameters
Hi Hasan, Let's take a look at the code. s = tf('s'); Gp = 2 / (0.2 * s + 1); %pump Gv = (2.2 * 10^-3) * 2; %valve Gt = 2...

circa un anno fa | 0

Risposto
Inverse fft doesn't match analytical formulation
Let's take things one step at a time and see where they lead. If we have Continous-Time Fourier Transform (CTFT) F(w) = 1/w^2 ...

circa un anno fa | 1

Domanda

What are All of the Variables in the Workspace on Answers?
What are all of these and should they be here? whos In particular, having an empty double named 'i' is not good as that can sc...

circa un anno fa | 1 risposta | 0

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Domanda

Why is Documentation Missing When Installed Locally?
I have the documentation installed locally, but I just noticed that doc can't find the documenation for the Statistics and Machi...

circa un anno fa | 1 risposta | 0

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Risposto
Gradient Vector for partial derivative seems backward for dfdx
Hi Kevin, It turns out that nDfy only gives the correct result because of the symmetry. xo = 0.8; yo = 0.2; h = 0.01; ...

circa un anno fa | 1

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Risposto
PID Controller Design by Pole Assignment
Hi Bahadir, I'm not sure if the code is implementing what it should, but the reason the result is coming back with Ki = bres = ...

circa un anno fa | 1

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Risposto
Step response of transfer function different in ODE45 than in 'step' and 'lsim'
Hi dikkemulle, The compensation is different between the two cases. For the ode45 implementation (ignoring v_desired for simp...

circa un anno fa | 1

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Risposto
M,C and K into state space model
mechss doesn't work? sys = mechss(M,D,K,B,F,[],[])

circa un anno fa | 0

Risposto
multiply a matrix into every block matrix in a big matrix
Check out blockproc. Example data H = [1,2;3,4]; rng(100); A = rand(4,6); Result R = blockproc(A,[2 2],@(B) H*B.data) Che...

circa un anno fa | 0

Risposto
Can you call Simulink models recursively?
Hi Jan, I think the Tapped Delay block is exactly what you need.

circa un anno fa | 0

Risposto
Simulating the impulse response of a higher order filter.
Hi @saqib, You're probably running into issues with numerical accuracy because the coefficients in the system are so large. Ge...

circa un anno fa | 0