How to obtain the sum of series of a discrete-time signal?

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Talha Gungor
Talha Gungor 2021년 5월 24일
답변: Hiro 2021년 5월 25일
I want to obtain the value for the below function in Matlab.
fs = 5000; %sampling frequency
N=250; %number of samples for 50ms time portion
ts=1/fs; %time interval between samples
t = linspace(0,0.05,N);
x = sin(2*pi*100*t)+0.7*cos(2*pi*500*t);
The x[n] is given above. y[n] is the denoised case of the white gaussian noise added x[n] signal.
I'have tried
F1=symsum((x(n)-y(n))^2/x(n)^2,n,0,N-1);
but it didn't work.
How can I define the x in terms of n?

답변(1개)

Hiro
Hiro 2021년 5월 25일
Do you intend to use Symbolic Math Toolbox?
In that case, you need to define your variables as follows:
syms x y n
before beginning to code that way.

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