How can I fix this error?

2021 3 30
1 个回答
更新时间：2021 3 30
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James Tursa
James Tursa 2021-3-30
In the future, always post your code as text highlighted by the CODE button. Do not post your code as images because we can't copy & run pictures.
Kwan Ho NG
Kwan Ho NG 2021-3-30
clear;
fs=10^4;
fc=1000; %carrier frequency
T=16*(1/500); %1/500 is the bit duration; 16bits data
Ts=1/fs; %Ts is the sampling duration for a given frequency = 0.0001s
N=T/Ts; %total number of samples for the 16 bit data
sin_wave= sin(2*pi*fc*(0:Ts:(N-1)*Ts));
cos_wave= cos(2*pi*fc*(0:Ts:(N-1)*Ts));
Ns=40;
data_I=[1 1 1 1 1 -1 1 -1];
data_Q=[-1 -1 1 1 -1 1 -1 -1];
sum_unm=8;
for i=1:sum_unm
for j=1:Ns
data_I_exit((i-1)*Ns+j))=data_I(i);
data_Q_exit((i-1)*Ns+j))=data_Q(i);
end;
end;
for i=1:N
out_QPSK(i)=data_I_exit(i)*cos_wave(i)+data_I_exit(i)+cos_wave(i);
end;
x=0:Ts:T-Ts
plot(x,out_QPSK)

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James Tursa
James Tursa 2021-3-30

0 个投票

Delete the extra closing parentheses. I.e., delete the paren where the red underline is.

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