Method of pedestal component elimination based on line CCD for spatial-filter velocimetry signal

	Method of pedestal component elimination based on line CCD for spatial-filter velocimetry signal
	Zheng L.; Kuang H.; Li W.; Leng X.; Yuan G.; Chen X.
	2014
发表期刊	Guangxue Xuebao/Acta Optica Sinica
ISSN	ISBN/02532239
卷号	34 期号:2
摘要	A method of pedestal component elimination is proposed using line CCD for spatial-filter velocimetry (SFV) signal, which is based on spatial filtering effect of line CCD. By using difference demodulation arithmetic, pedestal and direct current (DC) components are eliminated, both amplitude and signal noise ratio are improved at the same time. Characteristics of equivalent difference spatial filter are analyzed with the research of power spectral density function of spatial filter difference demodulation. The feasibility of pedestal component elimination using difference demodulation arithmetic is validated with experiments. The result shows that difference demodulation arithmetic can eliminate pedestal and DC components, and amplitude of signal component is doubled, which will benefit the pick-up of useful signal component.
收录类别	EI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/44157
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Zheng L.,Kuang H.,Li W.,et al. Method of pedestal component elimination based on line CCD for spatial-filter velocimetry signal[J]. Guangxue Xuebao/Acta Optica Sinica,2014,34(2).
APA	Zheng L.,Kuang H.,Li W.,Leng X.,Yuan G.,&Chen X..(2014).Method of pedestal component elimination based on line CCD for spatial-filter velocimetry signal.Guangxue Xuebao/Acta Optica Sinica,34(2).
MLA	Zheng L.,et al."Method of pedestal component elimination based on line CCD for spatial-filter velocimetry signal".Guangxue Xuebao/Acta Optica Sinica 34.2(2014).

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