Satellite Navigation System Time Delay Automatic Calibration Technology and Ground Verification

The satellite navigation system uses TOA (Time of Arrival) technology to complete positioning, navigation, and timing. Therefore, the performance of the navigation system is directly related to the delay of the equipment. During the construction of the global satellite navigation system, the delay of receiving equipment and sending equipment need to be accurately calibrated. In the current delay calibration process, manual operation takes up a few time and introduces certain errors, which would affect the accuracy of delay calibration. This paper has carried out the research on the automatic calibration technology of satellite navigation system delay, and some ground verification. The verification results show that the technology can effectively improve the efficiency and accuracy of delay calibration.