Infrared scene simulation system, infrared scene simulation method and DMD control method

Abstract

The invention relates to an infrared scene simulation system, belongs to the field of infrared scene simulators, and is used for solving the defect that a high-temperature object in a low-temperature environment is difficult to realize in the prior art. The infrared scene simulation system comprises a first infrared light path, a second infrared light path and a beam combiner. The first infrared light path comprises a first black body and a first DMD subsystem, and the first DMD subsystem generates an image with 2N gray levels by taking the first black body as an infrared light source. The second DMD subsystem takes a second black body as an infrared light source to generate a 2N-level gray image. The beam combiner is used for combining the first infrared light path and the second infrared light path to form an image after gray scale superposition. And the temperatures of the first black body and the second black body are adjusted to enable the temperatures to be smaller than a first preset value and to be sufficient to simulate a target of which the temperature value is a second preset value in the infrared scene. The invention also comprises an infrared scene simulation method and a DMD control method. One application of the invention is to simulate a high-temperature object in a low-temperature scene.

Description

technical field [0001] The invention relates to the field of infrared scene simulators, in particular to an infrared scene simulation system, an infrared scene simulation method and a DMD control method. Background technique [0002] The mid-wave infrared scene generator is an important component of the infrared imaging guided weapon countermeasure environment simulation system. Its function is to receive infrared images to generate digital images output by the computer, correct and transmit the images, and convert the digital images into mid-wave infrared radiation signals. , to construct a medium-wave infrared scene for infrared imaging-guided weapons, and evaluate the adaptability of infrared imaging-guided weapons to medium-wave infrared environments. [0003] The mid-wave infrared scene generator is used to simulate the scene and target temperature. The scene simulation temperature of this mid-wave infrared scene generator requires room temperature to 80°C, and the targ...

AI Technical Summary

Problems solved by technology

The temperature of the object in the environment during the test was 30.51°C, as shown in Table 1 and From the data in 1, it can be seen that when the blackbody is turned off, the target temperature measured by the thermal imager is the temperature of the object in the environment. As the target temperature increases, the background temperature also gradually increases. When the high temperature target output temperature When the temperature is 200°C, the low temperature background output temperature is 39.87°C, and the simulation of the low temperature (room temperature) scene of 30.51°C cannot be realized

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