Scicos Diagram
fr - eng


Scattered diagram of base band QPSK transmission chain

\epsfig{file=qpsk_teb_diagr.eps,height=12.5cm}

Module


Contents

Description

Context


Te=0.1;
Nu=350;
Nech=15;
N=Nu*Nech;
Nbit=2;
nb_coef=127;  
r=0.35; 
fe=Nech; 
gain_em=1; 
gain_rec=1/Nech; 
pulse=zeros(1,1); 
t_Ts=1/fe*(-nb_coef/2:nb_coef/2-1); 
pulse = 4*r/%pi*(cos((1+r)*%pi*t_Ts) + (sin((1-r)*%pi*t_Ts)./(4*r*t_Ts)))./(1-(4*r*t_Ts).^2); 
Nb_vec=3; 
nb_event=3;
Tfin=Te*Nb_vec*10
sigma=0.2;

 

Scope Results

\begin{figure}\begin{center}
\epsfig{file=qpsk_teb_scope_1.eps,width=300.00pt}
\end{center}\end{figure}
Figure : (a)
\begin{figure}\begin{center}
\epsfig{file=qpsk_teb_scope_2.eps,width=300.00pt}
\end{center}\end{figure}
Figure : (b)
\begin{figure}\begin{center}
\epsfig{file=qpsk_teb_scope_3.eps,width=300.00pt}
\end{center}\end{figure}
Figure : (c)
\begin{figure}\begin{center}
\epsfig{file=qpsk_teb_scope_4.eps,width=300.00pt}
\end{center}\end{figure}
Figure : (d)
\begin{figure}\begin{center}
\epsfig{file=qpsk_teb_scope_5.eps,width=300.00pt}
\end{center}\end{figure}
Figure : (d)

Used blocks

Authors

IRCOM Group Alan Layec