How to simulate BMTJ under slow frequency hopping system?

[mydear2007]

Can anyone tell me jamming technology about PBNJ(partial band noise jamming) and BMTJ(band multi-tone jamming)?principle or simulation methods under slow frequency hopping system, plz......
Added after 2 hours 44 minutes:

the following is some of my program about PBNJ, but how to simulatio BMTJ, thx!

if (ran1(&seed_jam)<rho) jam=1;
else jam=0;
if (jam==1)
{
chan_i[j]=sigma_j*gasdev(&seed_i[j]);
chan_q[j]=sigma_j*gasdev(&seed_q[j]);
}
else
{
chan_i[j]=sigma_n*gasdev(&seed_i[j]);
chan_q[j]=sigma_n*gasdev(&seed_q[j]);

}
if (data_interl[number]==j)
{
theta=2*3.14159*ran1(&seed_th);
chan_i[j]+=As*cos(theta);
chan_q[j]+=As*sin(theta);
}
chan[j]=chan_i[j]*chan_i[j]+chan_q[j]*chan_q[j];
}