Denoising of X-ray pulsar observed profile in the undecimated wavelet domain
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- 作者：Meng-fan Xuea ; xuemfxd@126.com" class="auth_mail" title="E-mail the corresponding author ; Xiao-ping Lia ; xpli@xidian.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Ling-zhong Fub ; fulingzhong@163.com" class="auth_mail" title="E-mail the corresponding author ; Xiu-ping Liuc ; liuxiuping8@126.com" class="auth_mail" title="E-mail the corresponding author ; Hai-feng Suna ; haifengsuncheer@163.com" class="auth_mail" title="E-mail the corresponding author ; Li-rong Shena ; lr_xidian@163.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：X-ray pulsar ; Denoising ; Signal-dependent noise ; Undecimated wavelet transform ; LLMMSE
- 刊名：Acta Astronautica
- 出版年：2016
- 出版时间：January-February 2016
- 年：2016
- 卷：118
- 期：Complete
- 页码：1-10
- 全文大小：754 K
文摘
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A signal-dependent noise model is developed to characterize the observed profile.
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A LLMMSE filter in the un-decimated wavelet domain is proposed.
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The method does not require any a priori information of original observed profile.
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The method is tested against both real and experimentally obtained simulated data.