Research of Spectrum Signal-to-Noise Ratio of Large Aperture Static Imaging Spectrometer

doi:10.3964/j.issn.1000-0593(2014)03-0851-06

OPT OpenIR > 光谱成像技术研究室

	Research of Spectrum Signal-to-Noise Ratio of Large Aperture Static Imaging Spectrometer
	Wang Shuang1,2 ; Xiangli Bin 3; Li Li-bo1,2 ; Pi Hai-Feng 1,2
	2014-03-01
发表期刊	SPECTROSCOPY AND SPECTRAL ANALYSIS
卷号	34 期号:3 页码:851-856
摘要	The process of acquiring hyperspectral data cube of a Large Aperture Static Imaging Spectrometer (LASIS) includes several vital and essential steps, such as interferometer modulation, rectangular convolution sampling by pixels of detector and spectra retrieving. In this process, how to precisely evaluate the Signal-Noise Ratio (SNR) of spectra and how to wholly establish a related evaluation model were both generally very complicated. After a full consideration of the transmission process, utilizing the theory of rectangular convolution sampling and the spectral retrieving method regarding the computation of real part of the discrete Fourier transform of interferogram, formulas of both spectral signal and spectral noise were deduced theoretically, and then a evaluation model regarding the spectral SNR of LASIS was established. By using this model and other design factors of LASIS involving the wavenumber related optical transmittance, the interferometer beam splitter efficiency, the detector quantum efficiency and the main circuit noise, a simulation of spectral SNR was implemented. The simulation result was compared with the measurement result of the SNR of a LASIS instrument. The SNR lines and trends of the two match each other basically in single spectral band. The average deviation between them is proved to be 3. 58%. This comparison result demonstrates the feasibility and effectiveness of the evaluation model. This SNR evaluation model consisting of the main technical aspects of typical LASTS instrument from the input spectral radiation to the output spectrum data is possible to be applied widely in practical design and implement of LASTS, as well as may provide valuable reference on SNR calculation and evaluation for other imaging spectrometers.
文章类型	Article
关键词	Fourier Transform Imaging Spectrometry Spectrum Signal-to-noise Ratio Evaluation Model Radiation Transmission Noise
WOS标题词	Science & Technology ; Technology
DOI	10.3964/j.issn.1000-0593(2014)03-0851-06
收录类别	SCI ; EI
语种	中文
WOS研究方向	Spectroscopy
WOS类目	Spectroscopy
WOS记录号	WOS:000335624300060
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.opt.ac.cn/handle/181661/24063
专题	光谱成像技术研究室
作者单位	1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Key Lab Spectral Imaging Tech, Xian 710119, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Acad Optoelect, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Wang Shuang,Xiangli Bin,Li Li-bo,et al. Research of Spectrum Signal-to-Noise Ratio of Large Aperture Static Imaging Spectrometer[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2014,34(3):851-856.
APA	Wang Shuang,Xiangli Bin,Li Li-bo,&Pi Hai-Feng.(2014).Research of Spectrum Signal-to-Noise Ratio of Large Aperture Static Imaging Spectrometer.SPECTROSCOPY AND SPECTRAL ANALYSIS,34(3),851-856.
MLA	Wang Shuang,et al."Research of Spectrum Signal-to-Noise Ratio of Large Aperture Static Imaging Spectrometer".SPECTROSCOPY AND SPECTRAL ANALYSIS 34.3(2014):851-856.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Research of Spectrum（329KB）	期刊论文	出版稿	限制开放	CC BY	请求全文