Open AccessA new method for the pulsar signals simulation
Author(s) -
Xiaomin Bei,
Shuai Peng,
Liangwei Huang,
Haifeng Sun,
Yaojun Wu,
Zhiliang Qian
Publication year - 2014
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.63.219701
Subject(s) - pulsar , poisson distribution , physics , pulse (music) , computer science , resolution (logic) , algorithm , process (computing) , statistical physics , computational physics , astrophysics , optics , statistics , artificial intelligence , mathematics , detector , operating system
Since X-ray pulsar signals cannot be detected on the ground, the pulsar signals need be simulated using the ground experiments. In this paper,two new simulation methods to obtain the time of arrival are put forward. The first method is based on a statistical physics model, which should overcome the shortcomings of narrow adaptation, low speed, and low time resolution in normal simulation method. This method has a high time-resolution and rapid simulation for any random pulse signals. 23 Another one is for the optimization of statistical models that satisfy signals in non-homogeneous Poisson process. The is second method has an improved simulation speed at least 30 times higher than the common Poisson model, even achieves four orders of magnitude greater than that for low flow pulsars, and this method also achieves a nanosecond time resolution simulation.