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Paul


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223 2011 이후 총 참여 횟수

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How to put step reference command on Simulink?
Constant = 5, feeds a Discrete Tansfer Fcn block with Numerator = 1, Denominator = [1 -1] and Sample Time = 3

1일 전 | 0

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Is my Fourier Transform code correct?
Why whould this approach be expected to exactly recover the original signal? The DFT of the original signal is not zero everwher...

2일 전 | 0

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Step Response and Root Locus are give me different answers
The information in the datatip on the root locus plot is only applicable for a response defined by that pole location (and its c...

3일 전 | 0

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Fourier transform of sum of sinusoids
The exact Fourier transform can be found as: syms w1 w2 w3 t w f(t)=sin(w1*t)+sin(w2*t)+sin(w3*t); F(w)=fourier(f(t),t,w)

5일 전 | 0

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coeffs of symbolic equation
Is this what you're looking for: syms x y z=x+2*x*y+4.*y+5*x*y^2; [cxy,t]=coeffs(z,[x y])

5일 전 | 0

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How to represent 2 inputs 4 outputs closed loop state space system as a MATLAB code? please help!
According to doc connect the last two arguments to connect() should each be a char or cell arrays of char, in the order inputs...

7일 전 | 0

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Fourier Series using MATLAB
You probably want f1(x) = piecewise(x < -sym(pi), 0,x < 0,-x-sym(pi), x<=sym(pi), x+sym(pi), x>sym(pi), 0); You'll find some o...

7일 전 | 0

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Variable Substitution of a Function
It is correct, isn't it? x1^2 = (-x1)^2, x1*x2 = (-x1)*(-x2), and x2^2 = (-x2)^2

9일 전 | 0

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Finding Symbolic Matrix Derivative
Declare theta and phi as functions, and then substitute after differentiating A syms phi(t) theta(t) phi_dot(t) theta_dot(t) A...

9일 전 | 0

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Symbolic matrices multipleid incorrectly
What was your actual check that the result does not pass? Maybe you need to simplify() the result? M1=sym('m1',[2 2]); M2=sym...

9일 전 | 0

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Load variables into a simulink model from a Matlab funtion.
Check out the doc page for the sim() command doc sim The sim() command has some options that do what you want, including the S...

16일 전 | 1

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Finding Time Constant from Root Locus of a Transfer Function
Right click a point on a rlocus plot and a data tip will pop up with useful information. Unclear what Vr is or how it relates t...

19일 전 | 0

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How can I compute the CDF between - infinity to TH
Check out doc normcdf

19일 전 | 0

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Spiral density function implementation
I'm going to assume that the question means that the conditional density of r given theta is normal with exepectation mu = theta...

20일 전 | 0

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Error in acker function, poles do not much size A?
poles should have three elements based on the size of A, but it only has one: >> poles poles = -4.0800e+03

20일 전 | 0

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Define a density function and draw N samples of it
The Statistics and Machine Learning Toolbox has lots of typical densities that can be used to generate samples of random variabl...

21일 전 | 0

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How to add matrix in a matrix which is obtained using syms function?
blkdiag() seems to work blkdiag(B1,B2) though interestingly enough it appears that blkdiag is not a supported function for the...

22일 전 | 0

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Conditional normal random distribution
I'm going to assume that for any value of theta, the radius (rho) is normally distributed with mean 2*theta and variance = sigma...

22일 전 | 0

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z transfer function - cascade
Simulink has a host of commands (doc page) that can be used to create and edit block diagrams.

23일 전 | 0

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Plot convolution of two wave signals
If we assume that m(t) = c(t) = 0 for t < 0, we can show analytically that the convolution integral m(t)*c(t) is periodic with p...

24일 전 | 0

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Setting initial condition of State Space model (not block in Simulink)
I'm almost certain that the initial conditions are not a settable (is that a word?) property of ss objects. The initial conditio...

25일 전 | 1

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How to find response of a system through convolution?
I don't think you're doing anything wrong. Rather, what you're seeing is the effect of approximating a convolution integral wit...

25일 전 | 1

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Simulink Transfer Function Variable from Matlab
Try using a Constant block and set its parameter to wref, instead of using an Inport for wref. The error message sounds like th...

26일 전 | 0

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Postive PM and GM but unstable closed loop response
Closed loop stability needs to be determined before caculating GM and PM. In other words, GM and PM cannot be used to determine...

27일 전 | 0

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Step response with initial condition
According to the question, the output should satisfy y(t=0) = 10. But the system, u_del, as specified will yield a step response...

28일 전 | 0

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Simulink computational load of each subsystem (or block)
Check the doc pages for the the Simulink Profiler, Solver Profiler, and various pages on how to optimize performance, if you hav...

28일 전 | 0

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[Solved] How do you use rlocus with multiple feedback loops?
Start with the correct characteristic equation: 1 + D(s)*G(s)*I(s) + D(s)*G(s)*Kt = 0 (not sure why the picture shows the last...

28일 전 | 0

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How to implement an Impulse Delay in Simulink
Not sure I've ever seen that called an "impulse delay." Doesn't matter what it's called. If Td is constant, the Transport Delay...

29일 전 | 0

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Integrate a bivariate normal distribution over y when x is fixed
One simple approach is to evaluate f(a,y) for vector of y from y1 to y2 and then use cumtrapz() or trapz() on the result.

29일 전 | 1

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How to detrend the signal?
Have you looked at doc detrend

29일 전 | 0

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