A Research on the Pulsar Timing Based on Kalman Filtering

Details A Research on the Pulsar Timing Based on Kalman Filtering A Research on the Pulsar Timing Based on Kalman Filtering

Apr 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010cha%26a..34..187s&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 34, Issue 2, p. 187-193.

Astronomy and Astrophysics

Astrophysics

Scientific paper

The pulsar is a high-speed rotationing neutron star with a stable rotational period, being not disturbed and destroyed artificially, and can be taken as the reference quantity of the absolute time. In this article a kind of pulsar time service method based on the Kalman filtering algorithm is proposed, and the simulation analysis of the clock error control based on the Kalman filtering and of the effect of the pulsar catalogue error and the measuring accuracy of the pulsar time of arrival (TOA) on the accuracy of time service is made by taking a certain solar synchronous orbit as an example. The result shows that by utilizing this method the clock error of the satellite-borne clock can be effectively eliminated and its time-dependent increase is restrained, thereby solving the problem that the accuracy of the spacecraft-borne low cost clock can not meet the needs.

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