Laser time transfer processing method and system, storage medium, device and application
A technology of time transfer and processing method, applied in measurement devices, radio wave measurement systems, satellite radio beacon positioning systems, etc. The effect of precision
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Embodiment 1
[0077] For space vehicles that do not have precise orbital parameters at the initial stage, the direct one-way timing method is used for rough synchronization. The ground station transmits the modulated laser pulse sequence to the space vehicle. The pulse contains a start code and the time information of the start code. When the spacecraft receives this pulse, it checks its coded sequence, and when a start code is detected, it makes a measurement of the moment of the start code. According to the orbital data of the aircraft, the time information contained in the received laser pulses is subtracted from the path delay of light flight, and compared with the clock carried by the spacecraft, the deviation is obtained and corrected. At the same time, the measurement value of the start code time received by the spacecraft is sent to the ground station in the same encoding method, which is used to detect the correction value of the spacecraft clock bias.
Embodiment 2
[0079] After the rough synchronization between the ground station and the spacecraft, the precise time synchronization and clock difference measurement are realized by using the synchronous two-way time transfer method. The ground station and the spacecraft send start code and start code time information to each other every second, measure the start code time sent by the other party, and receive the start code time information sent by the other party. According to the time code information, both the ground station and the spacecraft can measure the time deviation between each other to complete precise two-way time transfer.
[0080] It should be noted that the embodiments of the present invention can be realized by hardware, software, or a combination of software and hardware. The hardware part can be implemented using dedicated logic; the software part can be stored in memory and executed by a suitable instruction execution system such as a microprocessor or specially designe...
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