Realization of Hadamard Transform Encoding Mask Using Programmable Digital Micro-mirror Device

被引：2
作者：
Wang, W. [1 ]
Wen, Z-Y. [1 ]
Zhang, Z-H. [1 ]
Mo, X-X. [1 ]
机构：
[1] Chongqing Univ, Natl Key Lab Fundamental Sci Micro Nanodevice & S, Chongqing 630044, Peoples R China
来源：
MEMS/NEMS NANO TECHNOLOGY | 2011年 / 483卷
关键词：
MOEMS; Hadamard Transform; Encoding Mask; DMD;
D O I：
10.4028/www.scientific.net/KEM.483.497
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The realization of Hadamard Transform (HT) encoding mask is the key technology to Hadamard Transform Spectroscopy. In order to realize HT mask using DMD, the theory of HT and principle of light modulate of DMD are explained. DMD is controlled by programming to realize cyclic HT mask based on S-matrix. The performance of the mask is also verified by building a spectroscopy experiment system, and higher SNR spectrum information is acquired. The results indicate that the SNR in HT mode is 38.4323 while 11.3446 in scanning mode, the gain of SNR is 3.38. It can be concluded that the HT encoding mask that realized by DMD is feasible, spectrum signal's intensity and SNR can be improved effectively.
引用
收藏
页码：497 / 502
页数：6
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