物理学报2012,Vol.61Issue(11):570-578,9.
X射线脉冲星累积轮廓建模及信号辨识
Modeling of X-ray pulsar cumulation profile and signal identification
摘要
Abstract
In order to reduce the observation time of X-ray pulsar signal identification,a new identification algorithm based on the photon distribution statistics is proposed.The influence of cumulation period variation on photons distribution is analyzed,according to whether the cumulation period is correct,two kinds of Poisson models are developed to characterize the cumulation profiles.The photon distribution statistics is constructed,and the difference of photon distribution statistics between two kinds of profiles is presented.Rossi X-ray timing explorer observation data is used for simulation,and the simulation result verifies the effectiveness of the suggested method.关键词
脉冲星/信号辨识/累积轮廓模型/光子分布统计量Key words
pulsar/signal identification/cumulation profile model/photons distribution分类
数理科学引用本文复制引用
谢强,许录平,张华,罗楠..X射线脉冲星累积轮廓建模及信号辨识[J].物理学报,2012,61(11):570-578,9.基金项目
国家自然科学基金 ()
国家高技术研究发展计划(批准号:2007AA122323)资助的课题 ()