An improved phase measurement method of integrated pulse profile for pulsar. (English) Zbl 1241.85009
Summary: Integrated profile is one of the basic characteristic of X-ray pulsar. Gaussian function fit is used to model the components of X-ray pulsar profile, and it is combined with Poisson distribution model of X-ray pulsar to analyze Cramér-Rao low bound (CRLB) of phase, phase rate estimation and relation between CRLB and profile components. Then, a time domain method using minimum entropy is proposed for profile phase and phase rate estimation, and its effectiveness is explained using simulation examples.
MSC:
| 85A25 | Radiative transfer in astronomy and astrophysics |
| 62P35 | Applications of statistics to physics |
| 94A17 | Measures of information, entropy |
| 85A15 | Galactic and stellar structure |
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