A test method for evaluating the shading effect of visible light smoke screens

Abstract

The invention provides a testing method used for evaluating the visible light smoke screen shadowing effect and belongs to the technical field of modern smoke screens. The method is used for detecting whether a smoke screen forms effective shadowing and detecting smoke screen duration, smoke screen effective size and other efficacy parameters. A marker post serves as a background reference. A marker post spectrum image penetrating through the smoke screen is collected by means of an acousto-optic turnable filter (AOTF) spectrum imaging instrument; a data processing terminal conducts weighted synthesizing on the collected spectrum image to obtain a true color image based on human eye thresholds, and the true color image is compared with a non-smoke-screen-shadowing true color image collected before smoke screen releasing to evaluate whether the smoke screen forms effective shadowing or not; according to the formula in the description, the size of the smoke screen is measured; the smoke screen formation time is measured according to the whole shooting process of the spectrum imaging instrument. Compared with the prior art, the method has the advantages of being simple in calculation, easy to operate, capable of saving time and labor and high in efficiency.

Description

technical field [0001] The invention belongs to the technical field of modern smoke screens, in particular to a test method 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 method of expressing smoke screen transmittance is to be able to express The value of 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.

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