label dots with bits - Can someone help me?
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how do i label my points?
are complex points.
My code is as follows:
clear all;
close all;
clc;
L = 1e4; % Number of bits
SNRdB = 0:28;
SNR = 10.^(SNRdB/10);
r = 10.^(SNRdB/10);
alpha = 0.3;
max_run = 100;
for sk = 1:length(SNRdB)
for tk = 1:max_run
% 1 ou -1 para sinal em fase (an)
x_inp_I = sign(rand(1,L)- 0.5);
% 1 ou -1 para sinal de quadratura (bn)
x_inp_Q = sign(rand(1,L)- 0.5);
QPSK = x_inp_I + 1i .* x_inp_Q;
% Gera bits de marca d'água aleatórios (dI)
Bit_wat_I = sign(rand(1,L)- 0.5);
% Gera bits de marca d'água aleatórios (dQ)
Bit_wat_Q = sign(rand(1,L)- 0.5);
% Outra forma de encontrar a equação
for k = 1:L
if Bit_wat_I(k) == 1 && Bit_wat_Q(k) == 1
Bit_enviado(k) = (x_inp_I(k) .* ((sqrt(1-alpha)) + (sqrt(alpha)))) + (1i .* x_inp_Q(k) * ((sqrt(1-alpha)) + (sqrt(alpha))));
end
end
end
end
h = scatterplot(QPSK);
hold on
scatterplot(Bit_enviado,[],[],'r*',h)
I would like to label it with bits like the example below:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/631580/image.png)
3 个评论
采纳的回答
Image Analyst
2021-5-27
Did you try calling text()?
4 个评论
Image Analyst
2021-5-28
编辑:Image Analyst
2021-5-28
So did you try the code in my comment above (click "Show older comments" link above to see it)?
I can't run your program because
'scatterplot' requires Communications Toolbox.
You forgot to add the Communications Toolbox to the product list when you posted so I'll add it now.
更多回答(1 个)
Sulaymon Eshkabilov
2021-5-27
编辑:Sulaymon Eshkabilov
2021-5-27
Hi,
(1) you need to create binary representation of your plotted points using dec2bin() for labels to display on the plot
(2) to put labels to all of your plotted points, you can employ this code written by Adam Danz
https://www.mathworks.com/matlabcentral/fileexchange/46891-labelpoints
另请参阅
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