ZHANG Caihong, LIU Jingnan, NIE Guigen. The Comparative Analysis of Long-term Stability of Pulsar Time and That of Atomic Time Using σ_z(τ)[J]. Geomatics and Information Science of Wuhan University, 2012, 37(7): 847-850.
Citation: ZHANG Caihong, LIU Jingnan, NIE Guigen. The Comparative Analysis of Long-term Stability of Pulsar Time and That of Atomic Time Using σ_z(τ)[J]. Geomatics and Information Science of Wuhan University, 2012, 37(7): 847-850.

The Comparative Analysis of Long-term Stability of Pulsar Time and That of Atomic Time Using σ_z(τ)

Funds: 国家自然科学基金资助项目(41074023);;中央高校基本科研业务费专项资金资助项目(2008)
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  • Received Date: April 17, 2012
  • Published Date: July 04, 2012
  • The characters of 7.5 a timing series of dual-frequency timing for millisecond pulsar PSR J1939+2134 are studied for the first time.DE421 is suggested by analyzing the effects on the precision of pulsar timing with different planet ephemeris.The long-term stability of pulsar time and that of atomic time is evaluated using σz(τ) method,and it is found that the long-term stability of pulsar time is always improved with time elapsed and up to 10-15 in 6 a.Hence,pulsar time has obvious advantage as the time standard for keeping time and time service.
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