光谱学与光谱分析 |
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Hadamard Transform Spectrometer Mixed Pixels’ Unmixing Method |
YAN Peng, HU Bing-liang, LIU Xue-bin, SUN Wei, LI Li-bo, FENG Yu-tao, LIU Yong-zheng |
Laboratory of Spectral Imaging Technique,Xi’an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi’an 710119, China |
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Abstract Hadamard transform imaging spectrometer is a multi-channel digital transform spectrometer detection technology, this paper based on digital micromirror array device (DMD) of the Hadamard transform spectrometer working principle and instrument structure, obtained by the imaging sensor mixed pixel were analyzed, theory derived the solution of pixel aliasing hybrid method, simulation results show that the method is simple and effective to improve the accuracy of mixed pixel spectrum more than 10% recovery.
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Received: 2011-01-26
Accepted: 2011-04-20
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Corresponding Authors:
YAN Peng
E-mail: summer_hehe@163.com;hbl@opt.ac.cn
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