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- W2389093530 abstract "In order to improve the precision of time synchronization between the appropriative apparatuses of integrated testing system of a space camera,a means was designed.Based on the GPS satellite synchronous clock,it combined the serial time message and the second-pulse to adjust the time of appropriative apparatuses.The serial time message taken,second-pulse capture,internal punctual clock and the PCI local control logic modules were designed with the Field Programmable Gate Array (FPGA) and VHSIC Hardware Description Language (VHDL).Using the WDM based on Windows 2000/XP,the PCI driver was explored to communicate the time message in FPGA to the appropriative apparatus synchronously.A microsecond-delayed second-pulse was designed to serve as a substitute to prevent the time discontinuity caused by the power broken of GPS satellite synchronous clock when it was working.The test and experiment show that both the precision and accuracy of time synchronization have reached the microsecond range,which totally satisfies the requirement of the integrated testing system of space camera for adjusting time in real time." @default.
- W2389093530 created "2016-06-24" @default.
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- W2389093530 date "2010-01-01" @default.
- W2389093530 modified "2023-09-24" @default.
- W2389093530 title "Time synchronization of integrated testing system of space camera" @default.
- W2389093530 hasPublicationYear "2010" @default.
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