Some new results of IR systems' sensitivity equations
- 23 Downloads
Typical IR systems' sensitivity equations have been established for decades, these include the NETD equation for IR imaging systems, and the acquisition and tracking range equations for IR searching and tracking systems, but they only fit the specific or simplified conditions. For example, the NETD equation can only be used for systems tested under the standard condition. In the field application, we must deal with the noise equivalent radiance difference NELD, not the NETD, and give out its explicit equation for concrete calculation. For the range equation, when the small target, often called a point source, is not strong enouph, i. e., when the target contrast is seriously decreased, we must consider the unneglectable background effect. In this paper, we summarrize some more general and valuable IR systems' sensitivity equations, which can be used for the practical engineering analysis and projection effectively.
Key wordsIR systems sensitivity equations acquisition and tracking range background effect
Unable to display preview. Download preview PDF.
- ,W. L. Wolf and G. J. Zissis: The infrared Handbook (1978), Chapter 19 and 22.Google Scholar
- ,Zhang Youwen: Modification of the sensibility equations of various infrared systems, ACTA PHYSICA SINICA, 1980, 29, 7, 813.Google Scholar
- ,Richard D. Hudson, Jr: Infrared system engineering (John Wiley & Sons, Inc. 1969), chapter 13.Google Scholar
- ,Zhang Xiaolin: The general equations of IR systems' acquisition and tracking range, the 12th intern. conf. on IR and MMW (conf. digest 1987).Google Scholar
- ,J. M. Lloyd: Thermal imaging systems (N. Y. Plenum Press 1975), chapter 5.Google Scholar
- ,Zhang Xiaolin: A direct calculation method of IR remote sensing systems' detectability for forest fire (detailed abstract) SPIE Vo. 1230, p. 461 (1990).Google Scholar
- ,Zhang Xiaolin and Shu Yuwen: On the spatial resolution of IR remote sensing systems, Intern. J. of IR and MMW, 1986, 7, 5, 749.Google Scholar