function get_preamble

Nused=1703;

% Generate preamble Wk
initseq=[1 1 1 1 1 1 1 0 0 0 0];
PRBS=initseq;
for loop=1:Nused
    Wk_preamble(loop)=PRBS(end);
    PRBS=[xor(PRBS(9),PRBS(11)),PRBS(1:10)];
end

save Wk_preamble.mat Wk_preamble;

% Generate constant-modulus preamble
preamble_cm=round(rand(1,2048));

save preamble_cm.mat preamble_cm;