| 摘要 |
When arranging J cyclic permutation matrices I(pj,l) with p rows and q columns (0≦̸j≦̸J−1, 0≦̸l≦̸L−1) in a row direction and also arranging L cyclic permutation matrices I(pj,l) in a column direction so as to generate a regular quasi-cyclic matrix having uniform row and column weights, a quasi-cyclic matrix generating unit 31 configures the regular quasi-cyclic matrix by combining cyclic permutation matrices I(pj,l) in each of which matrix elements whose row number is r (0≦̸r≦̸p−1) and whose column number is (r+pj,l) mod p are “1”s, and other matrix elements are “0”s in such a way that a plurality of cyclic permutation matrices I(pj,l) arranged at, e.g., the 1st row differ from one another.
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