Scicos Diagram
fr - eng


Chaotic frequency hopping transmission system

\epsfig{file=trans_chaos_em_rec_diagr.eps,width=400pt}

Module


Contents

Context 


nb_coef = 33+28

lines(-1);

F_cpf   = 20e6;
T_cpf   = 1/F_cpf;
sig_ref = T_cpf*0.02/100

Fo = 2.045e9;
To = 1 / Fo;
wo = 2*%pi * Fo;
kv = 100.5e6;

alpha = 6.91e9;
beta2 = 0.15;
j_vco = 0.2e6;

Fd = 2.5e9;
N  = int(Fd/F_cpf)

Nsampl = 2;
Tsampl = 1/(F_cpf*Nsampl);
Fsampl = 1 / Tsampl;

Icp   = 5e-3;
Ileak = 0.1e-6;
fn    = F_cpf/280;
phi   = %pi/4;

Ts   = 3/fn
Nech = 12
Te   = Ts/Nech

M    = 32
Nbit = 3
a    = 0.5
b    = -1

//Define Pll-emitter loop filter 
[tau1,tau,tau2]=calcul_3eme_ordre(fn,phi,kv*2*%pi,Icp,N);
s    = poly(0,'s');
num  = 1+tau1*s;
den  = tau*s*(1+tau2*s);

//Define Pll-receiver loop filter 
fn2 = F_cpf/100;
[tau1,tau,tau2]=calcul_3eme_ordre(fn2,phi,kv*2*%pi,Icp,N);
num2 = 1+tau1*s;
den2 = tau*s*(1+tau2*s);

Tfin = 0.01512

Scope Results

\begin{figure}\begin{center} \epsfig{file=trans_chaos_em_rec_scope_1.eps,width=330.00pt} \end{center}\end{figure}
Figure : Scope results
\begin{figure}\begin{center} \epsfig{file=trans_chaos_em_rec_scope_2.eps,width=330.00pt} \end{center}\end{figure}
Figure : Scope results
\begin{figure}\begin{center} \epsfig{file=trans_chaos_em_rec_scope_3.eps,width=330.00pt} \end{center}\end{figure}
Figure : Scope results
\begin{figure}\begin{center} \epsfig{file=trans_chaos_em_rec_scope_4.eps,width=330.00pt} \end{center}\end{figure}
Figure : Scope results

Used blocks

See Also

Authors

IRCOM Group Alan Layec