Time pulse synchronization method based on RDSS satellite navigation system
A satellite navigation system and time pulse technology, applied to radio-controlled timers, instruments, etc., can solve the problems of poor usability and reliability, mis-synchronization or high probability of mis-synchronization, and achieve the effect of improving the degree of resistance
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[0025] The present invention will be further described below in conjunction with the accompanying drawings.
[0026] Based on the time pulse synchronization method in the RDSS satellite navigation system, the above method obtains delay information by analyzing the navigation information carried by the satellite downlink signal, and samples the local clock with the frame time mark of the downlink signal to calculate the time deviation of the local clock relative to Beidou time , and finally realize the adjusted time pulse output, which is characterized in that it includes the following steps:
[0027] (1) Analyze the satellite downlink signal every minute to obtain the satellite navigation message;
[0028] For the Beidou RDSS satellite navigation system, the broadcast information used for pulse time synchronization is repeated 8 times per minute, and the first 4 times are compared. If the comparison results are consistent, the broadcast information is considered credible, othe...
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