由使用概括 Hadamard 产品,差别矩阵;设计矩阵,我们在场直角的设计矩阵的一个班;力量二的相关直角的数组。直角的数组的一个新班被构造。
By using the generalized Hadamard product, difference matrix and projection matrices, we present a class of orthogonal projection matrices and related orthogonal arrays of strength two. A new class of orthogonal arrays are constructed.