Signal-to-Noise Ratio Analysis of Bandpass Sampling Time-Modulated Fourier Transform Spectroscopy

被引：0
|
作者：
Chen, Xinwen [1 ,2 ,3 ]
Tan, Zheng [1 ,3 ]
Wang, Jianwei [1 ,3 ]
Zhao, Na [1 ,2 ,3 ]
Tang, Yinhui [1 ,2 ,3 ]
Liu, Yangyang [1 ,2 ,3 ]
Si, Jia [1 ,3 ]
Zhang, Yu [1 ,2 ,3 ]
Sun, Jianying [1 ,2 ,3 ]
Li, Weiyan [1 ,3 ]
Lv, Qunbo [1 ,2 ,3 ]
机构：
[1] Chinese Acad Sci, Aerosp Informat Res Inst, 9 Dengzhuang South Rd, Beijing 100094, Peoples R China
[2] Univ Chinese Acad Sci, Sch Optoelect, 19 A Yuquan Rd, Beijing 100049, Peoples R China
[3] Chinese Acad Sci, Key Lab Computat Opt Imaging Technol, 9 Dengzhuang South Rd, Beijing 100094, Peoples R China
来源：
APPLIED SCIENCES-BASEL | 2024年 / 14卷 / 21期
关键词：
FTS; bandpass sampling; SNR;
D O I：
10.3390/app142110015
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In Bandpass Sampling Fourier Transform Spectroscopy, a comprehensive method for evaluating signal-to-noise ratio (SNR) has not yet been established. This paper employs an energy conservation approach to analyze the relationship of SNR between interferogram and spectra in Bandpass Sampling Time-Modulated Fourier Transform Spectroscopy (BPS-FTS). It systematically presents models for the average SNR of the system interferogram and the average SNR of reconstructed spectra under different parameters. These models are compared with SNR models in traditional Fourier transform spectroscopy (FTS) and are mutually validated through theoretical modeling and simulation analysis. It provides a theoretical basis and simulation verification for the design and implementation of the system.
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页数：17
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