Theoretical analysis on stationary Gaussian random noise in narrowband Fourier transform spectrometer

	Theoretical analysis on stationary Gaussian random noise in narrowband Fourier transform spectrometer
其他题名	论文其他题名
	Lu J. G.; Liang J. Q.; Liang Z. Z.
	2012
发表期刊	Acta Physica Sinica
ISSN	1000-3290
卷号	61 期号:7
摘要	The spectral resolution can be increased by detecting the optical signal in a narrowband spectrum for the Fourier transform spectrometer based on spatial modulated in our study. In this paper, to study the effect of the radiant source on the interference system, we regard the radiant noise as a narrowband stationary Gaussian random process. Using the linear system analysis method and the statistical theory, we deduce the input signal-to-noise ratio (SNR) and the output SNR after the optical signal and the radiant noise have passed through the interference system. Then we simulate the system and compare the obained result with a narrowband rectangle spectrum, and obtain the SNR gains along the optical path difference (OPD) in different autocorrelation degree and cross-correlation degree values. The simulation result indicates that the SNR gains at different OPDs in the correlation degree space each are a monotonic smooth surface. The SNR gain maximum moves along the radius and the contour of the correlation degree circle, and it returns to the initial position. after an OPD According to the analysis of the SNR gain, the autocorrelation degree and cross-correlation degree values can be controlled in a certain area, which can serve as a criterion for the design and the test of the radiant source.
收录类别	SCI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/25519
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Lu J. G.,Liang J. Q.,Liang Z. Z.. Theoretical analysis on stationary Gaussian random noise in narrowband Fourier transform spectrometer[J]. Acta Physica Sinica,2012,61(7).
APA	Lu J. G.,Liang J. Q.,&Liang Z. Z..(2012).Theoretical analysis on stationary Gaussian random noise in narrowband Fourier transform spectrometer.Acta Physica Sinica,61(7).
MLA	Lu J. G.,et al."Theoretical analysis on stationary Gaussian random noise in narrowband Fourier transform spectrometer".Acta Physica Sinica 61.7(2012).

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