Analysis of Stray Light and Enhancement of SNR in DMD-Based Spectrometers.

Xiangzi Chen, Xiangqian Quan

Abstract read

In one paragraph

Article in Sensors (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1citing papers in PubMed

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1 citing paper in PubMed.

Ensure the accuracy and consistency of biochemical analyzer test results: Chemometrics for instrument and inter-instrument item comparison in Chinese hospital laboratory.Heliyon · 2024
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5 · Who and what money

Authors and funding

2 authors.

Xiangzi ChenCollege of Marine Science and Technology, Hainan Tropical Ocean University, Sanya 572022, China.

Xiangqian QuanInstitute of Deep-Sea Science and Engineering, Chinese Academy of Sciences, Sanya 572000, China.

Funding

Hainan Provincial Natural Science Foundation of China, the Youth Innovation Promotion Association CAS , and the project of the Key Laboratory of Space Laser Information Transmission and Detection Technology of the Chinese Academy of Sciences (Nos. 120QN275 and 2019RC258);(No. 2020361); (No. KJL-2021-001).

6 · The paper itself

Abstract

Due to advantages such as the high efficiency of light utilization, small volume, and vibration resistance, digital micro-mirror device (DMD)-based spectrometers are widely used in ocean investigations, mountain surveys, and other field science research. In order to eliminate the stray light caused by DMDs, the stray light in DMD-based spectrometers was first measured and analyzed. Then, the stray light was classified into wavelength-related components and wavelength-unrelated components. Moreover, the noise caused by the stray light was analyzed from the perspective of encoding equation, and the de-noising decoding equation was deduced. The results showed that the accuracy range of absorbance was enhanced from [0, 1.9] to [0, 3.1] in single-stripe mode and the accuracy range of absorbance was enhanced from [0, 3.8] to [0, 6.3] in Hadamard transform (HT) multiple-stripe mode. A conclusion can be drawn that the de-noising strategy is feasible and effective for enhancing the SNR in DMD-based spectrometers.

Indexed as

Refractometrydata processingdigital micro-mirror device (DMD)-based spectrometerHadamard transform (HT)stray light analysis

Identifiers

PMID36016003

DOI10.3390/s22166237

PMCPMC9413973

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