etalement spectre v4
etalement spectre v4
etalement spectre v4
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II-2a. Familles de codesConstruction des codes :codes de Walsh / matrices de HadamardH⎡H⎢⎣H[ ]⎡ ⎤N N ⎤0 ; H =0 ; L H =⎥ ⎦0=1N+1NHN⎢⎣ 0 10⎥⎦HN=puissance de 2les codes sont donnés par les colonnesCITI - Dept Télécoms 41