非制冷IRFPA像元结构与时空随机噪声的优化理论
作者:
作者单位:

1.北京理工大学 光电学院 光电成像技术与系统教育部重点实验室北京 100081;2.中国空空导弹研究院光电器件研究所河南 洛阳 471009;3.北方广微科技有限公司北京 100089

作者简介:

通讯作者:

中图分类号:

TN215

基金项目:


Optimal theoretical study of the pixel structure and spatio-temporal random noise of uncooled IRFPA
Author:
Affiliation:

1.School of Optoelectronics, Beijing Institute of Technology, Key Laboratory of Photoelectronic Imaging Technology and System, Ministry of Education of China, Beijing 100081, China;2.China Airborne Missile AcademyHenan Luoyang 471009,China;3.North Guangwei Technology IncBeijing 100089,China

Fund Project:

Key projects of the National Natural Science Foundation of China 61231014;Doctoral Fund priority development project of Ministry of Education of China 20131101130002Supported by Key projects of the National Natural Science Foundation of China (No. 61231014); Doctoral Fund priority development project of Ministry of Education of China(No. 20131101130002).

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    非制冷红外焦平面探测器(Uncooled IRFPA)像元结构从单层结构向双层结构的发展降低了探测器噪声,提升了性能。介绍了像元的MEMS结构及主要物理参数,指出双层结构与单层结构的主要差异在于像元有效面积和桥臂热导的不同。三维噪声模型是对IRFPA噪声进行分析的有效手段,其中时空随机噪声是非制冷IRFPA最主要的噪声成份。分析了非制冷IRFPA时空随机噪声的产生机理,建立了时空随机噪声模型,得到时空随机噪声与像元有效面积和桥臂热导的关系。将某款单层像元结构探测器改进为双层像元结构并进行噪声测试,实测数据证明了非制冷IRFPA时空随机噪声模型的有效性。

    Abstract:

    The development of uncooled IRFPA pixel structure from a single-layer structure to a double-layer structure reduces noise and improves performance. The pixel structure and its main physical parameters are introduced. It is noted that the main difference between the double-layer structure and the single-layer structure lies in the difference in the effective area of the pixel and thermal conductivity of the bridge leg. The 3-D noise model is an effective method to analyze IRFPA noise, in which spatio-temporal random noise is the main noise part of uncooled IRFPA. The mechanism of spatio-temporal random noise in uncooled IRFPA is analyzed, and a spatio-temporal random noise model is established. The relationship between spatio-temporal random noise, the effective area of the pixel, the thermal conductivity of the leg is obtained. An uncooled IRFPA with a single-layer pixel structure is improved by changing it into a double-layer pixel structure, and the noise is measured. The measured data proved the effectiveness of the uncooled IRFPA spatio-temporal random noise model.

    参考文献
    相似文献
    引证文献
引用本文

冯涛,金伟其,司俊杰,张海军.非制冷IRFPA像元结构与时空随机噪声的优化理论[J].红外与毫米波学报,2020,39(2):142~148]. FENG Tao, JIN Wei-Qi, SI Jun-Jie, ZHANG Hai-Jun. Optimal theoretical study of the pixel structure and spatio-temporal random noise of uncooled IRFPA[J]. J. Infrared Millim. Waves,2020,39(2):142~148.]

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2019-06-07
  • 最后修改日期:2020-04-02
  • 录用日期:2019-10-24
  • 在线发布日期: 2020-04-01
  • 出版日期:
文章二维码