Complex Hadamard matrices related to Bent sequences

Hadamard matrices are often used for some applications, such as error-correcting codes and spread sequences. This article gives the construction of complex Hadamard matrices of order p/sup n/, where p is prime and n is even. The complex Hadamard matrices include bi-phase Hadamard matrices whose elements take {-1, +1}, and four-phase Hadamard matrices whose elements take {/spl plusmn/1, /spl plusmn/j} with j=/spl radic/(-1).