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�������պ����ѧѧ�� 2011, Vol. 37 Issue (11) :1429-1434    DOI:
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Estimation for detection probability of infrared point target under complex backgrounds
Mao Xia, Chang Le, Diao Weihe*
School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract�� The detection probability of infrared(IR) imaging system for point target will always be affected by complex backgrounds, but present methods can not be applied in the condition of complex backgrounds. Beginning from the model of operating distance of IR imaging system for point target, the relationship between detection probability, signal-to-noise ratio(SNR) and operating distance was analyzed, the estimation method under single background was gained. Then through the gray-to-radiance function of IR imaging system, the background-s IR radiance with its gray-value information was calculated. At last, the esimation method for single background was improved and the method for estimating the detection probability of infrared point target under complex background was proposed. The experimental results demonstrated that this method could effectively estimate the detection probability of IR imaging system under complex background in practical applications.
Keywords�� detection probability   operating distance   complex background   infrared point target   IR imaging system   signal-to-noise ratio(SNR)     
Received 2010-06-30;


About author: ë Ͽ(1952-),Ů,�㽭������,����,moukyou@buaa.edu.cn.
ëϿ, ����, ��ΰ��.���ӱ����º����Ŀ��̽����ʹ���[J]  �������պ����ѧѧ��, 2011,V37(11): 1429-1434
Mao Xia, Chang Le, Diao Weihe.Estimation for detection probability of infrared point target under complex backgrounds[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2011,V37(11): 1429-1434
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