| 摘要 |
PROBLEM TO BE SOLVED: To provide a novel technique for specifying order information on data carried with a positioning signal in a short time.SOLUTION: In a base-band processing part 20, a parity check processing part 214 makes a first determination on whether an error occurs to a first sub-frame on the basis of a parity bit included in the first reception sub-frame having been received. Further, the parity check processing part 214 makes a second determination on whether an error occurs to a second reception sub-frame on the basis of a parity bit included in the second reception sub-frame as an adjacent second sub-frame right before the first sub-frame when it is determined in the first determination that an error occurs. An order information specification part 216 determines that a sub-frame ID of the second sub-frame is correct when it is determined in the second determination that no error occurs. |
