| 摘要 |
PURPOSE: To hardly generate a large distortion even when a transmission line error occurs. CONSTITUTION: Representative vectors z1i , z2j are selected from code tables 1, 2 respectively, multipliers 21, 22 multiply them by weighting factors w1 , w2 , a synthesis section vector-synthesizes the multiplied vectors z1i w1 , z2j w2 , and a controller 6 selects the combination of z1i , z2j to minimize the distance (distortion) between the synthetic vector yi ,j and the input vector (x). The weighting factors W1 , W2 have the same number of elements as the element number of the vector z1i , and the weighting factors w1 , w2 are selected so that the sum of both diagonal matrixes of the w1 , w2 becomes the constant times the unit matrix when the weighting factor matrixes contain these elements as diagonal elements. |
