Research on Oven Controlled Crystal Oscillator tamper device based on GNSS and ZYNQ
In order to improve the accuracy and stability of Oven Controlled Crystal Oscillator(OCXO)frequency,GNSS tame OCXO frequency standard device based on ZYNQ technology is designed.In the PL end of ZYNQ,coarse measurement and fine measurement is used to meas-ure the time,and the PS end uses the singular value elimination and filtering algorithm to process the measurement data to realize the taming and time tracking of the OCXO frequency.Modular design and programming are adopted to improve the versality and portability of the de-vice.The results show that the average frequency accuracy reaches 1.09×10-12 and the relative frequency stability reaches 8.56×10 12,Its stability has improved by two orders of magnitude.
NETL
NSTL
万方数据
