[1]王礼庆,陈小文,李春来,等.提高短波红外光谱仪信噪比的均衡曝光技术[J].红外技术,2020,42(7):618-623.[doi:10.11846/j.issn.1001_8891.202007003]
 WANG Liqing,CHEN Xiaowen,LI Chunlai,et al.A Balanced Exposure Technique to Improve the Signal to Noise Ratio of a Shortwave Infrared Spectrometer[J].Infrared Technology,2020,42(7):618-623.[doi:10.11846/j.issn.1001_8891.202007003]
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提高短波红外光谱仪信噪比的均衡曝光技术
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《红外技术》[ISSN:1001-8891/CN:CN 53-1053/TN]

卷:
42卷
期数:
2020年第7期
页码:
618-623
栏目:
出版日期:
2020-07-23

文章信息/Info

Title:
A Balanced Exposure Technique to Improve the Signal to Noise Ratio of a Shortwave Infrared Spectrometer

文章编号:
1001-8891(2020)07-0618-06
作者:
王礼庆12陈小文1李春来1李飞飞1
1. 中科院上海技术物理研究所;
2. 中国科学院大学
Author(s):
WANG Liqing12CHEN Xiaowen1LI Chunlai1LI Feifei1
1. Shanghai Institute of Technical Physics of the Chinese Academy of Sciences;?
2. University of Chinese Academy of Sciences

关键词:
短波红外光谱仪信噪比均衡曝光
Keywords:
short-wave infraredsignal to noise ratio of spectrometerbalanced exposure technique
分类号:
TN215
DOI:
10.11846/j.issn.1001_8891.202007003
文献标志码:
A
摘要:
针对短波红外焦平面光谱仪传统曝光方式在一大类应用场景中的不足之处,提出了一种提高短波红外焦平面光谱仪成像信噪比的均衡曝光技术:即给予焦平面上不同光谱维以不同的积分时间来提高整个焦平面的成像信噪比。实验系统包括中科院上海技术物理研究所自主研制的短波红外焦平面探测器、探测器驱动电路、信号采集与处理电路、上位机软件等。实验对比了3.31 ms、5.76 ms、8.22 ms、10.68 ms、13.14 ms这5档积分时间的信噪比及其对比,经过测试,在忽略驱动及读出电路噪声的情况下,实验值与理论值接近,该技术有效提高了红外光谱仪成像信噪比。
Abstract:
The traditional exposure methods of shortwave infrared focal plane spectrometer have shortcomings in a variety of applications. This paper proposes a balanced exposure technique to eliminate these shortcomings. To improve the signal to noise ratio of the spectrometer, different spectral dimensions are given different integral times. We built an experiment system that included a shortwave infrared focal plane detector, a driver circuit, a signal acquisition and processing circuit, and PC software. The results of five different integral times (3.31 ms, 5.76 ms, 8.22 ms, 10.68 ms, 13.14 ms) and the contrast between them are close to the theoretical values. We conclude that this exposure technique can significantly improve the signal to noise ratio.

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备注/Memo

备注/Memo:
收稿日期:2018-02-08;修订日期:2020-07-06.
作者简介:王礼庆(1992-),男,浙江衢州人,硕士研究生,主要研究方向为短波红外焦平面信息获取技术。E-mail:1007443819@163.com。
通信作者:陈小文(1975-),男,副研究员,主要从事红外成像及信息获取方面的研究,长期进行探测器驱动、信号获取及大数据量采集方法等方面的工作。E-mail:chenxiaowen@mail.sitp.ac.cn。

更新日期/Last Update: 2020-07-16