| 摘要 |
PROBLEM TO BE SOLVED: To propose a new technique for rescuing reception data in which a demodulation error occurs.SOLUTION: In a base band processing circuit section 20, a demodulation section 213 receives a GPS satellite signal for transporting a navigation message and demodulates the received GPS satellite signal. Further, an error bit detection section 214 detects error bits from demodulation data by using parity bits contained in the demodulation data. On the other hand, a mismatch bit detection section 215 collates the demodulation data with given collation data and detects mismatch bits. An adoption/non-adoption determination section 216 determines whether or not the demodulation data is adopted on the basis of a difference among the error bits and the mismatch bits. Still further, a correction section 217 corrects the demodulation data when the demodulation data is determined to be adopted by the adoption/non-adoption determination section 216. |
