Visible light equipment operating distance testing method based on controllable objective target

Abstract

The invention discloses a visible light equipment operating distance testing method based on a controllable objective target. The method comprises the following steps that: firstly, selecting the controllable objective target as a testing objective; then, according to the practical terrain condition of a testing place, determining a testing operating distance; according to the determined testing operating distance, the operating distance stipulated by an index and an objective size stipulated by the index, determining the radiation area of the testing objective target; according to a meteorological condition during practical testing, a meteorological condition stipulated by the index and the determined testing operating distance, determining the radiation temperature of the testing objective target; and finally, according to the radiation area and the radiation temperature of the testing objective target, testing an infrared system on the determined testing operating distance, if the infrared system can detect / identify the objective, judging that the operating distance index of the infrared system under the stipulated condition is qualified, and otherwise, judging that the operating distance index of the infrared system is not qualified. By use of the evaluation method, the defect that the operating distance of the infrared system is restricted by atmospheric visibility and places when the operating distance of the infrared system is evaluated can be effectively eliminated, testing implementation difficulty is lowered, and testing efficiency is improved.

Description

technical field [0001] The invention relates to the field of performance testing and identification of visible light equipment, in particular to a method for testing the working distance of visible light equipment based on a controllable target. Background technique [0002] Visible light imaging equipment is currently widely used in military and civilian applications, and is an important means of obtaining image information in the visible light band. The working distance of visible light equipment refers to the maximum distance when the visible light imaging equipment detects / recognizes a specified target on a specified background with a probability of 50% under specified atmospheric visibility conditions. The effect of detection and recognition is related to factors such as target / background characteristics, atmospheric transmission, transmission characteristics of photoelectric imaging systems, and human visual characteristics. [0003] The inherent contrast between the ...

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Problems solved by technology

By changing the size of the controllable target, the contrast of light and dark stripes and the number of cycles, it overcomes the problems of the influence of atmospheric visibility, the limitation of the test site's visibility conditions, and the difficulty of obtaining special targets, and effectively improves the accuracy and operability of the distance test of visible light equipment. sex

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