Model of signal for digital antenna array with mutual coupling on the basis of face-splitting matrices product

When considering the multicoordinate digital antenna arrays (DAA) with mutual coupling of channels there arises a problem of the compact matrix record of the responses of the reception channels. For the solution of the given problem it is proposed to operate with a special type of the product of matrices, called the "face-splitting" and "transposed face-splitting" product (TFSP), respectively. With the aid of the TFSP it is possible to obtain the variant of the analytical model of a two-coordinate DAA with mutual coupling.