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Detection Range Estimation Method for Infrared Imaging of Point Source Targets

A technology of detection distance and infrared imaging, which is applied in the field of detection distance estimation of point source target infrared imaging, can solve the problems of long detection distance and no consideration of point influence, etc., and achieve the effect of overcoming insufficient estimation, improving estimation accuracy, and improving estimation accuracy

Inactive Publication Date: 2015-10-28
XIDIAN UNIV
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Problems solved by technology

This method is a relatively accurate method for calculating the detection distance, but the disadvantage of this method is that it does not consider the influence of point diffusion on the detection distance, so the calculated detection distance is much greater than the measured value

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  • Detection Range Estimation Method for Infrared Imaging of Point Source Targets
  • Detection Range Estimation Method for Infrared Imaging of Point Source Targets
  • Detection Range Estimation Method for Infrared Imaging of Point Source Targets

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Embodiment Construction

[0041] The present invention will be further described below in conjunction with the accompanying drawings.

[0042] refer to figure 1 , the concrete steps of the present invention are as follows:

[0043] Step 1. Query system parameters.

[0044] According to the infrared imaging system design manual, query the parameters required for the detection distance of point source target infrared imaging. Query the apparent area of ​​a point source target.

[0045] The parameters required for the detection distance of the point source target infrared imaging of the present invention include the focal length of the optical subsystem of the infrared imaging system, the entrance pupil diameter of the optical subsystem of the infrared imaging system, the number of lenses of the optical subsystem of the infrared imaging system, the position of the lens, Lens thickness, lens material, curvature of each surface of the lens, normalized detection degree of the detector in the infrared imag...

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Abstract

The invention discloses a method for estimation of the detection range of point source target infrared imaging. The method for estimation of the detection range of point source target infrared imaging mainly solves the problem that according to the prior art, the point source target detection range estimation error is too big. The method comprises the steps of (1) inquiring system parameters, (2) acquiring a point spread function template, (3) acquiring a visibility factor, (4) measuring the temperature, (5) calculating the radiance difference, (6) selecting a preset range, (7) acquiring an atmospheric attenuation coefficient, (8) calculating the signal to noise ratio of detection, (9) judging whether the signal to noise ratio of detection is equal to the signal to noise ratio of measurement, (10) judging whether the signal to noise ratio of detection is larger than the signal to noise ratio of measurement, and (11) acquiring the detection range. According to the method for estimation of the detection range of point source target infrared imaging, accurate estimation of the signal to noise ratio of point source target detection can be achieved, and then accurate estimation of the detection range can be achieved. The method for estimation of the detection range of point source target infrared imaging can be widely used in the field of infrared imaging detection and estimation.

Description

technical field [0001] The invention belongs to the field of electronic technology, and further relates to a method for estimating the detection distance of point source target infrared imaging in the field of infrared imaging technology. The invention can be widely used in the field of infrared imaging detection and evaluation, realizes the accurate estimation of the signal-to-noise ratio of point source target detection, and further can complete the accurate estimation of the detection distance. Background technique [0002] Infrared imaging detection technology plays an important role in military applications. Major military activities such as infrared guidance, space target search and reconnaissance, and ballistic missile early warning are inseparable from infrared imaging detection technology. The detection distance of an infrared imaging system is an important index for system design and evaluation. [0003] The patent application "Target Distance Estimation Method Ba...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J5/00
Inventor 王晓蕊刘可辉冯海霞黄曦刘德连张建奇王小兵袁红学
Owner XIDIAN UNIV
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