Info

此问题已关闭。 请重新打开它进行编辑或回答。

please help me in ploting the modulated signal.

1 次查看(过去 30 天)
clear; clc;
data_size=10;
M=2;
freq_sep=250;
nsamp=10;
fs=500;
data=randi([0 1],1,data_size);
qam_mod=qammod(data,M);
qam_demod=qamdemod(qam_mod,M);
ln=length(qam_mod);
subplot(2,1,1)
stairs(data)
AXIS([0 data_size -2 2])
xlabel('TIME')
ylabel('AMPLITUDE')
title('SENT DATA')
subplot(2,1,2)
stairs(qam_demod)
AXIS([0 data_size -2 2])
xlabel('TIME')
ylabel('AMPLITUDE')
title('RECEIVED DATA')
%time=0:1/fs:data_size*nsamp*1/fs-1/fs;
figure
subplot(2,1,1)
plot(qam_mod)
%axis([0 data_size*nsamp*1/fs -2 2 ])
grid on;
subplot(2,1,2)
stairs(data)
AXIS([0 data_size -2 2])
[num,rate]=biterr(data,qam_demod)
  1 个评论
Walter Roberson
Walter Roberson 2012-5-3
What difference do you see between what you get and what you expect to get? Are you encountering an error message?

回答(0 个)

此问题已关闭。

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by