Calibration device and calibration method for circular arc infrared target simulator

Abstract

A calibration device and a calibration method for a circular arc infrared target simulator belong to the technical field of an infrared target simulator. In order to meet the requirements of the priorart, the device comprises a circular arc infrared target simulator, a high-precision adjusting mechanism, a test base, an infrared goniometer and a triangular bracket. The high-precision adjusting mechanism is located on the test base, and the circular arc infrared target simulator is fixed on the high-precision adjusting mechanism. The infrared goniometer is placed a certain distance behind thecircular arc infrared target simulator, is mounted on the triangular bracket, and is located at the same height as the optical axis of the circular arc infrared target simulator. When a target withinthe infrared band of the circular arc infrared target simulator is emitted with parallel light, a target point generated by the circular arc infrared target simulator is calibrated by the infrared goniometer. According to the scheme, aiming errors caused by changes of brightness and gray levels of the arc edge of the target are effectively reduced by presetting circular holes above the arc edge ofthe target. The device is simple to operate, and calibration can be completed directly indoors.

Description

technical field [0001] The invention relates to a calibration device and a calibration method for an arc-shaped infrared target simulator, belonging to the technical field of infrared target simulators. Background technique [0002] In recent years, hardware-in-the-loop simulation has become an important means of scientific research. With the development of infrared detection technology, the infrared target simulator, as an important instrument for optical testing, can simulate the infrared thermal image of a real target and provide a great guarantee for the performance of infrared detection equipment. The test and evaluation provide accurate, controllable and repeatable test conditions. At present, various hardware facilities for target detection and positioning systems have been perfected day by day, but the adaptability of various detection and positioning methods is relatively low, and the infrared imaging model Calibration of parameters is a necessary prerequisite for o...

AI Technical Summary

Problems solved by technology

[0002] In recent years, hardware-in-the-loop simulation has become an important means of scientific research. With the development of infrared detection technology, the infrared target simulator, as an important instrument for optical testing, can simulate the infrared thermal image of a real target and provide a great guarantee for the performance of infrared detection equipment. The test and evaluation provide accurate, controllable and repeatable test conditions. At present, various hardware facilities for target detection and positioning systems have been perfected day by day, but the adaptability of various detection and positioning methods is relatively low, and the infrared imaging model Calibration of parameters is a necessary prerequisite for obtaining target spatial position information

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