A Triangular-Matrix-Based Spectral Encoding Method for Broadband Filtering and Reconstruction-Based Spectral Measurement
Abstract
:1. Introduction
2. Basic Principle
2.1. Basic BFRSM Measurement Model
2.2. Triangular-Matrix-Based Spectral Encoding
2.3. Ill-Posedness Estimation
3. Experimental Verification
3.1. Spectral Measurement under Precise Encoding Condition
3.2. Spectral Measurement under Imperfect Encoding Condition
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Uncertainty Source | Uncertainty Magnitude (k = 2) |
---|---|
Uniformity of the integrating sphere | 1.0% |
Uncertainty of the calibrated Gershun radiometer | 0.5% |
Stability of the laser source | 0.8% |
Uncertainty of the readout circuit | 0.2% |
Uncertainty of the spectral transmittance | 1.2% |
Calibration uncertainty of the reference spectrometer | 3.5% |
Combined uncertainty | 4.0% |
Uncertainty Source | Uncertainty Magnitude (k = 2) |
---|---|
Uniformity of the integrating sphere | 1.0% |
Uncertainty of the industrial camera response | 6.0% |
Noise of the industrial camera signal (repeatability) | 4.2% |
Stability of the laser source | 1.0% |
Uncertainty of the readout circuit | 0.2% |
Uncertainty of the spectral transmittance | 1.2% |
Calibration uncertainty of the reference spectrometer | 3.5% |
Combined uncertainty | 8.3% |
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© 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
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Yue, P.; Wang, X. A Triangular-Matrix-Based Spectral Encoding Method for Broadband Filtering and Reconstruction-Based Spectral Measurement. Sensors 2024, 24, 1215. https://doi.org/10.3390/s24041215
Yue P, Wang X. A Triangular-Matrix-Based Spectral Encoding Method for Broadband Filtering and Reconstruction-Based Spectral Measurement. Sensors. 2024; 24(4):1215. https://doi.org/10.3390/s24041215
Chicago/Turabian StyleYue, Pinliang, and Xiaoxu Wang. 2024. "A Triangular-Matrix-Based Spectral Encoding Method for Broadband Filtering and Reconstruction-Based Spectral Measurement" Sensors 24, no. 4: 1215. https://doi.org/10.3390/s24041215
APA StyleYue, P., & Wang, X. (2024). A Triangular-Matrix-Based Spectral Encoding Method for Broadband Filtering and Reconstruction-Based Spectral Measurement. Sensors, 24(4), 1215. https://doi.org/10.3390/s24041215