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Jiazeng Shan


Last seen: 1 year ago |  Active since 2011

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Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

11 years ago

Question


The question about signal power in watts
Hi guy, I am trying to use the AWGN Channel in the Simulink. Previously, I used awgn(y,SNR,'measured') in the Matlab. Now I nee...

12 years ago | 2 answers | 0

2

answers

Question


How to evalute the accuracy of the regressed model?
The simple model configuration is supposed as y = k/x. I want to use this to fit the scatter data. Using the command "regress" w...

12 years ago | 0 answers | 0

0

answers

Question


How to regress with the simple model like y=kx or y=k/x
Usually, the regression is done in Matlab with "regress", but it recommends the input X with a column of ones. And I find that i...

12 years ago | 1 answer | 0

1

answer

Question


Can I adjust the matrix of state-space model during simulation in Simulink?
I want to change the system matrix during the dynamic simulation within the Simulink. I can do that with following codes using t...

12 years ago | 1 answer | 0

1

answer

Question


How to estimate the auto-correlation function value r(k)=E[X(n)X(n-k)]
If X(n) is an available time series, I want to estimate the auto-correlation function value of r(k). The definition of r(k) is r...

13 years ago | 1 answer | 0

1

answer

Answered
How to use the polyfit block in Simulink
Actually, my question is simple that can I do the same process in simulink as the codes did shown above?

13 years ago | 0

Question


How to use the polyfit block in Simulink
I want to do the same thing in simulink as the commands shown below: clear all clc x=[0:0.01:1]'; a=[-2 5 6]'; f=@(x) a(1)*x.^2+...

13 years ago | 6 answers | 0

6

answers