Volume 42 Issue 11
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Gao Lingxiao, Zhang Zhihai, Zhang Wenkai. Noise-improvement of complementary S matrix uesd in DMD spectrometer[J]. Infrared and Laser Engineering, 2013, 42(11): 3082-3086.
Citation: Gao Lingxiao, Zhang Zhihai, Zhang Wenkai. Noise-improvement of complementary S matrix uesd in DMD spectrometer[J]. Infrared and Laser Engineering, 2013, 42(11): 3082-3086.
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Noise-improvement of complementary S matrix uesd in DMD spectrometer

  • 1.

    The Key Laboratory for Opto-electronic Technology and System under Ministry of Education,Chongqing University,Chongqing 400044,China;

  • 2.

    National Key Laboratory of Fundamental Science of Micro/Nano-Device and System Technology,Chongqing 400044,China

  • Received Date: 2013-03-04
  • Rev Recd Date: 2013-04-16
  • Publish Date: 2013-11-25
  • A complementary S-matrix code modulation scheme was designed for digital micromirror spectrometer. The theoretical analysis proved that the complementary S matrix itself had good properties: it could improve for abouttimes of S matrix in respect of noise improvement. It was proved that this scheme could reduce the noise of stray light and dark current in implementing process by detailed deduction and analysis on noise-improvement theory of complementary S matrix through modeling on spectral signatures. When this scheme was applied in DMD spectrometer for experimental verification. The results demonstrate that the 63 order complementary S matrix coding scheme improved for 1.69 times compared with same-order S-matrix coding scheme in signal-to-noise ratio, which is identical with the theoretical analysis.
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    [2] Shao Xiujuan, Hu Binglang, Yan Peng. Design of multi-spectral adaptive spectrometer based on Hadamard transform[J]. Infrared and Laser Engineering, 2010, 39(5): 963-966. (in Chinese) 邵秀娟, 胡炳樑, 闫鹏. Hadamard 变换多谱段自适应光谱仪[J]. 红外与激光工程, 2010, 39(5): 963 -966.
    [3] Bai Junke, Liu Xuebin, Yan Peng, et al. Laboratory radiation calibration method of Hadamard transforn imaging spectrometer[J]. Infrared and Laser Engineering, 2013, 24(2): 503-506. (in Chinese)白军科, 刘学斌, 闫鹏, 等. Hadamard 变换成像光谱仪实验室辐射定标方法[J]. 红外与激光工程, 2013, 42(2): 503-506.
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    [14] Zhang Zhihai, Gao Lingxiao, Guo Yuanjun, et al. The design and experiment of complementary S coding matrix based on Digital micromirror spectrometer.[J]. Spectroscopy and Spectral Analysis, 2012, 32(12): 3429-3432. (in Chinese)张智海, 高玲肖, 郭媛君, 等. 数字微镜光谱仪的互补S编码矩阵的设计及实验[J]. 光谱学与光谱分析, 2012, 32(12): 3429-3432.
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Noise-improvement of complementary S matrix uesd in DMD spectrometer

  • 1. The Key Laboratory for Opto-electronic Technology and System under Ministry of Education,Chongqing University,Chongqing 400044,China;
  • 2. National Key Laboratory of Fundamental Science of Micro/Nano-Device and System Technology,Chongqing 400044,China
  • Received Date: 2013-03-04
  • Rev Recd Date: 2013-04-16
  • Publish Date: 2013-11-25

Abstract: A complementary S-matrix code modulation scheme was designed for digital micromirror spectrometer. The theoretical analysis proved that the complementary S matrix itself had good properties: it could improve for abouttimes of S matrix in respect of noise improvement. It was proved that this scheme could reduce the noise of stray light and dark current in implementing process by detailed deduction and analysis on noise-improvement theory of complementary S matrix through modeling on spectral signatures. When this scheme was applied in DMD spectrometer for experimental verification. The results demonstrate that the 63 order complementary S matrix coding scheme improved for 1.69 times compared with same-order S-matrix coding scheme in signal-to-noise ratio, which is identical with the theoretical analysis.

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