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Medium wave infrared diode array scene generator

A diode array and generator technology, applied in the field of mid-wave infrared scene generators, can solve problems such as inability to generate low-temperature backgrounds, failure to meet low-temperature background simulation tests, etc., and achieve the effect of high image refresh frequency

Active Publication Date: 2013-07-03
CHINA NORTH IND NO 205 RES INST
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The main disadvantages of this medium-wave infrared diode array are: (1) The scanning method generates infrared images, which is suitable for staring photoelectric sensing systems. For scanning photoelectric sensing systems, both of them need to accurately maintain scanning synchronization
(2) For the simulation of high-temperature targets, it cannot generate a low-temperature background, and cannot meet the needs of low-temperature background (≤0°C) simulation tests

Method used

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  • Medium wave infrared diode array scene generator
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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0017] as figure 1 As shown, the present invention includes an image controller 1, a drive circuit 2, a diode array 3, a liquid nitrogen cooling component 4 and a power supply for the above components. The power supply is 5V DC power supply. The diode array 3 is composed of m×n infrared diodes integrated on the front surface of the first substrate, and the cathode of each infrared diode is connected to the ground. In this preferred embodiment, the diode array 3 is a 128×128 array, the type of the infrared diode is LED43, and the peak wavelength is 4.3 μm. The image controller 1 receives the image data and control commands generated by the host computer through the network module, and after buffer processing, sends the image data to the drive circuit 2 through the SPI bus, and the drive circuit 2 controls the image through the multi...

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Abstract

The invention discloses a medium wave infrared diode array scene generator and belongs to the field of infrared semi-physical simulation. In the generator, a diode array is used as an image generation device; an image controller is used for processing image data and a control command which are supplied by an image production computer so as to acquire a corresponding voltage signal and statically driving each medium wave infrared diode in the diode array through a driving circuit so as to generate a dynamic scene image; a liquid hydrogen refrigeration part is used for refrigerating the diode array; background temperature is detected by a temperature sensor arranged on the back of the diode array and fed back to the image production computer through the image controller; therefore, the medium wave infrared diode array scene generator meets the requirement of a medium wave infrared simulation test in a low-temperature background (the temperature is less than or equal to 0 DEG C).

Description

technical field [0001] The invention belongs to the technical field of infrared semi-physical simulation, in particular to a mid-wave infrared scene generator containing a diode array. Background technique [0002] The modern weapon optoelectronic system is a device with multi-mode, high frame rate and high dynamic range. It must consider the test problems of optoelectronic systems such as missile seekers, forward-looking infrared systems, trackers, and automatic identifiers. Through the establishment of a semi-physical infrared simulation system in the laboratory, various real scenes in the field are simulated, and the performance of the weapon's optoelectronic system is dynamically tested and evaluated. It is required that the scene generator of the infrared hardware-in-the-loop simulation system can: (1) provide infrared scenes with high resolution and high frame rate; (2) interact with the computer image generation system in real time. [0003] The Low Temperature Backg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M11/00
Inventor 王吉龙高教波孙科锋高飞
Owner CHINA NORTH IND NO 205 RES INST
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