Earticle

초록

영어

Under the conditions that the target and background are bold and the transmission loss in atmosphere between systems is neglected, the SNR of the thermal imaging system, the radiation flux of the target and the NETD expression are derived. On this basis, the NETD test system of the modern infrared thermal imager is studied. The system is constructed by a Newton type reflecting parallel light tube, and the off-axis parabolic reflector is as the main body, which provides infinity infrared observation target for infrared thermal imager being tested. The target is composed of the infrared reticle located at the focus of off-axis parabolic reflector and the high precision temperature blackbody at the back of the reticle. The image of infinity infrared target is displayed on its own screen by the infrared thermal imager. CCD shoots the screen of infrared thermal imager, and NETD value is obtained by processing the camera's video signal. The experimental results show that the accuracy of NETD synthesis can reach 0.03℃ in this paper.

목차

Abstract
 1. Introduction
 2. Basic Principles of NETD Testing
 2. Design of NETD Test System of Infrared Thermal Imager Based on Digital Image Processing
  2.1 Overall Scheme Design
  2.2 Total Experimental Results and Accuracy Analysis
 3. Conclusion
 References

키워드

저자

• Miao Cao [ Changchun University of Science and Technology, Jilin Changchun,130022, China ]
• Wenjie Cui [ Changchun University of Science and Technology, Jilin Changchun,130022, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Multimedia and Ubiquitous Engineering

• 간기

  월간

• pISSN

  1975-0080

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605