On a subclass of Welti codes and Hadamard matrices

A derivation is presented to show the relationship between a subclass of the Welti D codes and Hadamard matrices of order 2/sup n/. The Hadamard matrices are related to Welti D codes by means of a linear transformation. The relationship shown to exist between the Hadamard matrices and the Welti codes is only valid for those matrices of order 2/sup n/.<
>