| 摘要 |
A first digital signal sequence including I and Q digital signal sequences is obtained, the first digital signal sequence being obtained by multiplying each bit of an I-sequence and a Q-sequence in a digital signal sequence system by a first code among codes constituting n-th order (n is an integer) orthogonal codes. A second digital signal sequence is obtained by multiplying I and Q digital signal sequences by a first coefficient greater than 1, the I and Q digital signal sequences being obtained by multiplying each of the bits in the I-sequence and the Q-sequence in the digital signal sequence system by a first code among codes constituting 2n-th order orthogonal codes. The first digital signal sequence and the second digital signal sequence are added on a bit-by-bit basis to create one digital signal sequence, and the one digital signal sequence is transmitted from a single antenna. |
