Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011cha%26a..35...19l&link_type=abstract
Chinese Astronomy and Astrophysics, Volume 35, Issue 1, p. 19-28.
Astronomy and Astrophysics
Astrophysics
Scientific paper
The cycle-stationary Poison model for the photon arrival of X-ray pulsars and the estimation of the pulse's time of arrival (TOA) are discussed. Based on this model, the maximum likelihood estimation (MLE) of the TOA, as well as the Cramer-Rao boundary (CRB), are presented, especially the approximate formulation of the likelihood function and the Cramer-Rao boundary are derived for the low-RSN (signal-to-noise ratio) cases. By using the analytical pulse profile, we have made the Monte-Carlo simulation on the TOA estimation of PSR B1821-24, discussed the estimate error for different observation times and signal-to-noise ratios, and presented the corresponding RSN-thresholds. The results show that this method of data analysis can estimate effectively the timing accuracy of X-ray pulsar pulses and help to evaluate the corresponding performances in other applications.
Ke Xi-Zheng
Li Jian-Xun
No associations
LandOfFree
Maximum-likelihood TOA Estimation of X-ray Pulsar Signals on the Basis of Poison Model does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Maximum-likelihood TOA Estimation of X-ray Pulsar Signals on the Basis of Poison Model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Maximum-likelihood TOA Estimation of X-ray Pulsar Signals on the Basis of Poison Model will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1590859