how to plot this equation ?
显示 更早的评论
I'm trying to plot the equation shown in the image, but I'm not sure how to apply the Galois Seq. "gf()" here.
Can you please help me with this ?
Expected magnitude waveform.
clear all
close all
clc
%%
Fs = 1000; % Sampling frequency
T = 1/Fs; % Sampling period
L = 1024; % Length of signal
t = 2*(0:L-1)*T; % Time vector
signal = 0;
m = 5;
for k=1:((2^m)-1)
g = gf(2^m);
signal = signal + g(k).*exp(1i*2*pi*k*t)/((2^m)-1);
end
figure
subplot(2,2,1)
plot(t,signal)
title('signal')
采纳的回答
Here you'd need to define the purpose of using GF.
If you are aiming to select any randomly selected values of GF while computing the wave form fcn values, this can be done with the followings:
Fs = 1000; % Sampling frequency
T = 1/Fs; % Sampling period
L = 1024; % Length of signal
t = 2*(0:L-1)*T; % Time vector
signal = 0;
m = 5;
x = [0 1 1; 0 1 0; 1 1 1];
for k=1:((2^m)-1)
g =gf(x,m);
G = g.x(:);
signal = signal + double(G(randi(numel(G))))*exp(1i*2*pi*k*t)/((2^m)-1);
end
figure
subplot(2,2,1)
plot(t,real(signal))
title('signal: RE')
subplot(2,2,2)
plot(t,imag(signal))
title('signal: IM')
3 个评论
Mohamed Ahmed
2022-1-30
编辑：Mohamed Ahmed
2022-1-30
Sulaymon Eshkabilov
2022-1-30
If you want to have different values of x, then change the values of x or if you want to have specific values for x, then speficy them.
Mohamed Ahmed
2022-1-31
编辑：Mohamed Ahmed
2022-1-31
更多回答（1 个）
Benjamin Thompson
2022-1-26
0 个投票
This lines needs an extra set of parenthesis:
signal = signal + g(k).*exp((1i*2*pi*k*t)/((2^m)-1));
But the way you are using the gf function does not match how MATLAB describes it in the documentation.
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