Correction and analysis of noise in Hadamard transform spectrometer with digital micro-mirror device and double sub-gratings
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- 作者：Xiangqian Quana ; b ; quanxiangqian137@126.com" class="auth_mail" title="E-mail the corresponding author ; Hua Liua ; ; Zhenwu Lua ; Xiangzi Chena ; b ; Xiaoduo Wanga ; b ; Jialin Xua ; Qun Gaoa
- 关键词：Spectrometer ; Digital micro-mirror device (DMD) ; Double sub-gratings (DSG) ; Hadamard transform (HT) ; Anomaly in spectra ; Diffraction theory ; Spectral response
- 刊名：Optics Communications
- 出版年：2016
- 出版时间：15 January 2016
- 年：2016
- 卷：359
- 期：Complete
- 页码：95-101
- 全文大小：2469 K
文摘
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The main noises including intensity noise and spectral response noise and the effects of these noises on HT matrix equation are analyzed.
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Two methods are proposed including inserting full "on" state masks and defining the spectral response function.
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The Pearson correlation coefficient (PCC) is enhanced from 0.9108 to 0.9997.
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And these two methods are demonstrated to be significant.