Testing system used for evaluating visible light smokescreen shading effect

Abstract

The invention provides a testing system used for evaluating a visible light smokescreen shading effect, and belongs to the technical field of modern smokescreen. According to the system, a marker post is adopted as a background reference object, and is also subjected to calibration when the size of a smokescreen is measured; an AOTF spectral imaging system is composed of a front optical system, an AOTF crystal, a piezoelectric transducer and a CCD camera, and continuously collects marker post spectral images which penetrate through the smokescreen; weighted synthesizing is conducted on the collected spectral images at a data terminal, a true color image based on a human eye threshold value is obtained, and comparison is conducted between the true color image and a smokescreen-free true color image collected before the smokescreen is released to evaluate whether the smokescreen forms effective shading or not; performance parameters of smokescreen size and the like are calculated through a program design. Compared with the prior art, the testing system used for evaluating the visible light smokescreen shading effect has the advantages that the AOTF spectral imaging system is utilized to replace a traditional transmittance detection system, and the detection is real-time, simple and feasible and high in reliability.

Description

technical field [0001] The invention belongs to the technical field of smoke screen testing, in particular to a test system for evaluating the shading effect of visible light smoke screens. Background technique [0002] Smoke screen is an effective photoelectric passive jammer, which can make photoelectric scanning, tracking equipment and precision-guided weapons lose track and attack targets by shielding interference. Since the 1960s, many countries have successively used various types of jamming bombs, smoke bombs, smoke bombs, etc. to equip their troops, and almost all modern tanks and armored vehicles are equipped with launchers. Under the condition of not destroying the power system, it can prevent the normal and effective effect of the instrument on the electromagnetic spectrum, blind the enemy's reconnaissance and guidance radar, cause the radio command system to fail, and soldiers cannot accurately observe the target. [0003] In modern warfare, with the successful ...

AI Technical Summary

Problems solved by technology

Most of these measurement methods are aimed at point and optical channel measurement. Among them, the randomness of single point and single channel measurement is relatively large, and multi-point or multi-channel can greatly improve this. However, the ideal smoke screen transmittance measurement system is able to Indicates the value of the transmittance at each point in the area where the smoke screen is located

In addition, when the contrast between the occluded object and the smoke screen is close, even if the transmittance of the smoke screen is small, the shading effect of the smoke screen is still very good at this time, which shows that the evaluation of the shading effect of the visible light smoke screen by the transmittance is not perfect and accurate.

Images