| 光谱学与光谱分析 |
|
|
|
|
|
| The Melioration on Spectra Response Heterogeneity of Hadamard Transform Spectral Imager |
| LIU Cai-fang1,2, HU Bing-liang1*, WEI Ru-yi1, YAN Peng1 |
1. Xi’an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences, Xi’an 710119, China
2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China |
|
|
|
|
Abstract Hadamard transform optics has been developed in the past decades. It has been used in distinguishing targets, detecting feeble signals and so on. Hadamard transform spectral imager (HTSI), based on Digital Micro-Mirror Device, is a new dispersion spectral imager. HTSI has been developed in our laboratory. The spectral heterogeneity of encoded image captured by HTSI has been researched according to spectrum calibration in this paper. Relative and absolute spectrum emittance calibration algorithms have been proposed first time on HTSI to meliorate the spectrum heterogeneity. It aims at the problem that the accuracy of recovered spectrum is depressed by the heterogeneity noise and disorder encoding spectrum in spectral image. Simulation and experiment result have demonstrated that the meliorated spectral curve is close to the standard spectrum, and the variance of the recovered spectrum ranges from 2.4% to 4.2% with regard to the spectral image of 7 waves. This is fully satisfied for the requirement of laboratory and projects.
|
|
Received: 2011-10-31
Accepted: 2012-01-25
|
|
|
|
Corresponding Authors:
HU Bing-liang
E-mail: hbl@opt.ac.cn
|
|
[1] Harwit J V, Slone N J. Hadamard Transform Optics. London: Academic Press, 1979.
[2] LIU Jia, CHEN Fen-fei, LIAO Cheng-sheng, et al(刘 佳，陈奋飞，廖乘胜，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2011, 31(10): 2874.
[3] CHANG Ling-ying, ZHAO Bao-chang, QIU Yue-hong, et al(常凌颖，赵葆常，邱跃洪，等). Journal of Applied Optics(应用光学)，2010，31(3): 345.
[4] Neumann J G. Proc. SPIE, 2009, 7210: 71100B-1.
[5] Dupuis J R, Mansur D J, Vaillancourt R, et al. Proc. SPIE, 2009, 7301: 73010E-1.
[6] YU Qing, YU Xiao-fen, LIU Wen-wen, et al(余 卿，余晓芬，刘文文，等). Acta Optica Sinica(光学学报), 2011, 31(5): 0523005-1.
[7] ZHENG Yu-quan(郑玉权). Optics and Precision Engineering(光学精密工程), 2010, 18(11): 2347.
[8] GAO Jing, JI Zhong-ying, CUI Yan, et al(高 静，计忠瑛，崔 燕，等). Acta Optica Sinica(光学学报), 2010, 30(5): 1321.
[9] SUN Xin, LI Li-bo, HU Bing-liang, et al(孙 鑫，李立波，胡炳樑，等). Chinese Patent(中国专利)，200910022956, 2009.
|
| [1] |
QUAN Xiang-qian1，2, LIU Hua1*, LU Zhen-wu1, WANG Xiao-duo1，2, DANG Bo-shi1, CHEN Xiang-zi1，2, WANG Fang1 . Analysis and Correction of Spectral Curvature in Hadamard Transform Spectrometer with DMD [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(02): 555-560. |
| [2] |
XU Jun1,2, HU Bing-liang1*, FENG Da-zheng3, ZHANG Wen1,2, YAN Peng1 . Research on the Interlaced Encoding Pixels in Hadamard Transform Spectral Imager Based on DMD[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(01): 278-282. |
|
|
|
|
