An improved phase measurement method of integrated pulse profile for pulsar

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Abstract

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.

Keywords

pulsars phase measurement Cramér-Rao minimum entropy 
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Copyright information

© Science China Press and Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  1. 1.School of Electronic EngineeringXidian UniversityXi’anChina

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