| 摘要 |
PROBLEM TO BE SOLVED: To minimize the time for which a line is disconnected even if the synchronism of a PN code is lost owing to abrupt deterioration in reception S/N due to phasing, etc. SOLUTION: In addition to a tracking loop circuit 8 which performs tracking loop control over the phase of the PN code, this system is provided with a phase control information storage part 5 with stores phase control information for controlling a PN code generator 3 outputted from the tracking loop circuit 8. If the PN code becomes out of tracking, a demodulation part 6 reads phase control information before the PN code gets out of tracking out of the phase control information storage part 5 and uses the information to control the PN code generator 3. |
