Device-ground link time delay calculation method and system based on detector time code

• Main Authors: ZHU SHUNJIE, ZHANG WU, PENG JING, BAI CHONGYAN, HUANG HAO, TAO ZHUO, ZHANG YIYUAN, CHENG HUIXIA, XING ZHUOYI
• Format: Patent
• Language: Chinese; English
• Published: 09.09.2022
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MULTIPLEX COMMUNICATION; TRANSMISSION

Ground link time delay is an important factor influencing timing precision and is mainly obtained through test measurement in an AIT or large system docking test stage. Software and hardware design architectures of on-device electronic equipment are different, and part of detectors have the problem of fuzzy matching of output signals of device-ground link time delay measurement when an existing device-ground time delay measurement method for pulse time recording is applied. On the basis of a device-ground timing principle, ground baseband equipment is used for acquiring an on-device time code in a detector telemetering frame and a GPS time code added by a ground timing system source at the moment of receiving the telemetering frame, and the device-ground link time delay calculation method and system based on the detector time code are provided. The method can be used for calculating the magnitude order of the ground link time delay and determining the accurate value of the ground link time delay in combinatio