Journal of Computer and Communications

Volume 4, Issue 3 (March 2016)

ISSN Print: 2327-5219   ISSN Online: 2327-5227

Google-based Impact Factor: 1.24  Citations  

Time-Frequency System Builds and Timing Strategy Research of VHF Band Antenna Array

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DOI: 10.4236/jcc.2016.43018    2,380 Downloads   2,996 Views  


VHF (Very High Frequency) band antenna array will receive analog signal from universe for storage after digital sampling and adding time scale, and then do the interference analysis of different sub-station digital signal. It requires the time-frequency system with high precision and low drifting. This paper explains a time-frequency system of VHF band antenna, which can produce standard 10 MHz signal and clock signal needed by sampler, to ensure that two computers which sampling data has the same system time and the storage data has the accurate time scale, the system includes time comparison programme based on the GPS network timing two different sampling control computers. Timing strategy uses a time comparison software which based on the Labview graphical programming platform. This software captures the system time of two computers to analyze and determine the time deviation when the two computers occurs time offset, and then grant the GPS time of NTP server to the two computers through local area network in this time deviation. Final results show that this method can automatically calibrate the system time of the computers in the LAN, Precision Can Reach 0.1 s Orless.

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Liu, J. , Dong, L. , Wang, M. and Guo, S. (2016) Time-Frequency System Builds and Timing Strategy Research of VHF Band Antenna Array. Journal of Computer and Communications, 4, 116-125. doi: 10.4236/jcc.2016.43018.

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