Research on Integrity Monitoring Method of Time-Frequency Signal

The stability and reliability of high-precision time-frequency signal is an important basis for modern navigation. In this paper, a signal integrity monitoring method has been studied to identify and monitor the performance and the integrity of signal, resolve the problem and provide the high-precision physical signal more stability and reliability. Based on the method, a high-precision time-frequency signal integrity monitoring system has been constructed using the UTC (NTSC) in National Time Service Center of Chinese Academy of Sciences. The system verifies the correctness and validity of the method which proposed. Moreover, the system based on this method is with strong stability and applicability, not only monitors longterm multi-channel signals, but also provides the foundation signal for other system.