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首页> 外文会议>Annual Conference of the Chinese Society of Micro-Nano Technology >Research of the Hadamard Multiplex Advantages using a Programmable Micro-iVlirror in a near-Infrared Spectrometer
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Research of the Hadamard Multiplex Advantages using a Programmable Micro-iVlirror in a near-Infrared Spectrometer

机译：近红外光谱仪中可编程微静脉镜的Hadamard Multiplex优势研究

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摘要

A programmable micro mirror has been used in a near infrared spectrometer in order to achieve the purpose of signal multiplexing, to solve the problem of low luminous flux when using single slit and to increase the signal-to-noise (SNR) ratio. Use Hadamard Transform (HT) and programmable micro mirror as its encoding mask to detect the whole spectrum with a single detector, research and analyze the enhancement of SNR of the weak signal. First of all, the mask symbol number is fixed as 63-order based on the Hadamard Transform principle, calculate the optimal S-Matrix, and then the encoding mask has been realized by micro mirror. At last, carry out some experimental verifications as well as data analyzing, discuss the alternating spectrum signal which produce an effect on transformational algorithm, bring out the coadded upswing plan. The result shows that: the conflict of resolution and SNR can be well settled with Hadamard multiplex. The SNR can be increased by the factor of 3.5, which is identical with the theoretic result.
机译：可编程微镜已用于近红外光谱仪，以达到信号复用的目的，以解决单个狭缝时的低光通量的问题，并提高信号 - 噪声（SNR）比。使用Hadamard变换（HT）和可编程微镜作为编码掩模，以检测单个检测器的整个频谱，研究和分析弱信号的SNR的增强。首先，基于Hadamard变换原理，掩模符号编号固定为63级，计算最佳S矩阵，然后通过微镜实现了编码掩模。最后，执行一些实验验证以及数据分析，讨论了对变换算法产生效果的交替频谱信号，带出加入的上升计划。结果表明：解决方案和SNR的冲突可以很好地与Hadamard Multiplex稳定。 SNR可以增加3.5因子，与理论结果相同。

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