Answered
designfilt error in loop
In this messsage "Error in designfilt (line 189)," the "line 189" is refering to the line number in designfilt, not your code. ...

2 years ago | 0

Answered
Convert Quaternion to Euler angle extrinsically
Hi Frank, According to a comment in this answer, there appears to be no function in any toolbox that works with extrinsic Euler...

2 years ago | 0

Answered
Why the Hilbert transform is not correct using the hilbert function in Matlab?
I think the issue is that the assertion that the "Hilbert transform of cos is sin" is not correct for this problem. According to...

2 years ago | 0

Answered
How to do a Biquad (SOS) filtering
Hi Jay, I think it works like this if you want to cascade the filters together into a single, sos filter. %% Filter_1 h = fde...

2 years ago | 0

| accepted

Answered
Kalman filter for input estimation
The steady-state Kalman filter as implemented by kalman requires that the augmented realization be detectable, as opposed to mi...

2 years ago | 0

Answered
Discrete z to convert z^-1
z = zpk('z',-1); H = 0.0004773 * (z+0.9544)/ (z-0.9591) / (z-0.9064) H.Variable = 'z^-1'

2 years ago | 0

| accepted

Answered
Multiple Bandpass Filter Creation
fs = 16e3; %range = [50 8000]; CF1=linspace(50, 8000, 32) -50; CF2=linspace(50, 8000, 32) +50; Can't use the first and las...

2 years ago | 1

| accepted

Answered
Calculus Variational; code for finding the value of two constants for 2 values of the variable
Boundary conditions can be specified in the call to dsolve syms x(t) f = diff(x,t)^2+10*t*x eqn = functionalDerivative(f,x) ...

2 years ago | 2

Answered
Pole Placement Techniques Part 2
Hi MUHAMMAD, See some comments interspersed with the code below. clc; clear Here, we define the sysem in original form. % (1...

2 years ago | 0

| accepted

Answered
Structured H infinity synthesis can't find a controller that makes closed loop stable even with an asymptotically stable plant?
Hi Vinh, I'll say up front that I don't have a complete solution to your problem, but I have an observation that I'm pretty sur...

2 years ago | 1

| accepted

Answered
Regarding Pole Placement Techniques
A = [0 -83.33; 500 -10]; B = [166.67; 0]; C = [0 1]; D = 0; %Create state-space and convert to transfer function sys = ss(A...

2 years ago | 1

| accepted

Answered
phase jumps in dtft
n=-20:20; w=-2.5*pi:.01:2.5*pi; x1=zeros(size(n)); x1(n>=-2 & n<=2)=1; % x1(19:23)=1; Matlab doesn't have a function dtft. ...

2 years ago | 0

Answered
How can I add two fft functions?
Hi Anagha A=1; t=0:0.001:0.1; Here, the sampling frquency is 1000 Hz ... but the frequency of x is 1046 Hz. Assuming x shoul...

2 years ago | 0

| accepted

Answered
Comparing Analog Butterworth vs Bessel Filters shows large differences in coefficients and filtered data.
Hi Xavier, For "an analog Butterworth" filter, the code would be (butter) % All frequency values are in Hz. Fs = 20000; % Sa...

2 years ago | 0

| accepted

Question

Why Does Format of Data Returned from readtable() Depend on Import Options that are Not VariableTypes?
Here is the file type text1.csv When read without options, the table output is as expected. t1 = readtable('text1.csv') But ...

2 years ago | 2 answers | 1

2

answers

Answered
Apply Filter to Signal
I think this is the correct way to generate the output signal fs = 16e3; t = 0:(1/fs):1; % not defined in question numFilts=...

2 years ago | 1

| accepted

Answered
LQI with time-delay system
Yes, if using a Pade apporoximant for the time delay, then the Q matrix will have to be expanded to include the additional state...

2 years ago | 0

Answered
Error in port widths or dimensions.
If it makes sense that the outputs of each Fuzzy Logic Controller is 3, then there is a problem at the the output of the highlig...

2 years ago | 0

Answered
I have logged a signal from simulink to workspace in timeseries format and got 317 samples of that signal. Can i increase the number of samples i get or the sampling rate?
More samples of the logged signal can be collected by settng the Sample Time of the To Workspsace block to whatever sample time ...

2 years ago | 0

Answered
How to plot this equation
syms U Delta beta T k_beta U = -Delta/2*tanh(beta*Delta/2) UoverDelta = U/Delta UoverDelta = subs(UoverDelta,beta,inv(k_beta*...

2 years ago | 0

Answered
Derive function handle with a vector input argument
Hi Majeed, Maybe you're looking for something like this? q = [3 2 2 3]; p = sym('p',[1 4]); syms x y f = p(1)*x.^2+p(2).*y....

2 years ago | 0

Answered
Load timeseries data from workspace for non-periodic data
In the Model Configuration parameters, change the Input field under Load From Workspace from ts to addsample(ts,'Data',ts.Data...

2 years ago | 0

| accepted

Answered
how to use freqz function correctly
If x is a digitalFilter object, then freqz can be called as freqz(x,f,fs); where f is vector of frequencies of interest to vis...

2 years ago | 0

Answered
How to get the value of slopes of pchip at the enpoints?
The doc page pchip (under the Output Arguments, pp section) shows how the interpolationg polynominal is formed for each interval...

2 years ago | 1

| accepted

Answered
Struct as mask input
I did the following: 1) created a model child.slx. It has an Inport -> Gain -> Outport. The gain parameter is set to 'paramet...

2 years ago | 0

| accepted

Answered
Getting complex solution with Matlab ode45
It looks like your differential equation is very sensitive (I mean that loosely) A=-4.32; B=4; C=1.2; D=0.8; a=0.2778; ode...

2 years ago | 0

Answered
two output in one scope
The easiest way is to log each signal in their respective .mdl file, simulate each, and then plot from the base workspace.

2 years ago | 1

| accepted

Question

Why are the Corners Shaded in the Model Reference Block?
Consider the block diagram at this doc link for model referencing. Why are the corner triangles shaded in the block for Counter...

2 years ago | 1 answer | 0

1

answer

Answered
The problem with "contains"
Might not be faster, but .... LongStrings={'Apples are red' 'Lemons are yellow' 'Cucmbers are green' 'Some numbers are odd' 'Th...

2 years ago | 0

| accepted

Answered
I my tried to use for loop to find a transfer function and root louces
I think that rlocus(TF3) clears the figure and then overwrites, so I think you're actually getting the root locus for the last v...

2 years ago | 1

| accepted