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Proceedings Paper

A fully-digital processing approach in an infrared target detection system
Author(s): Lijun Qiu; Liwei Xu; Jiaxue Qi; Bin Li; Jiqing Yang
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Paper Abstract

Infrared target detecting and tracking is an important military application of the infrared technology, but the quality of image and the precision of detecting and tracking system are greatly influenced by the environment disturbance as well as the sensitivity of infrared acquisition equipment. A real-time fully-digital processing approach in an infrared target detecting and tracking system is introduced. In this paper, based on a comparison study on the present methods for quadrature sampling of signal, the sufficient-necessary condition for the sampling frequency choice is analyzed, and the choice range has been extended. Correspondingly, a new fully-digital approach for in-phase and quadrature components extraction is proposed and the expected results is obtained in experiments.

Paper Details

Date Published: 5 August 2009
PDF: 6 pages
Proc. SPIE 7383, International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications, 73830Q (5 August 2009); doi: 10.1117/12.833605
Show Author Affiliations
Lijun Qiu, Fourth Military Medical Univ. (China)
Liwei Xu, Fourth Military Medical Univ. (China)
Jiaxue Qi, Fourth Military Medical Univ. (China)
Bin Li, Fourth Military Medical Univ. (China)
Jiqing Yang, Fourth Military Medical Univ. (China)


Published in SPIE Proceedings Vol. 7383:
International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications
Jeffery Puschell; Hai-mei Gong; Yi Cai; Jin Lu; Jin-dong Fei, Editor(s)

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