Smoke screen cloud cluster polarization transmission characteristic simulation method and device

Abstract

The invention provides a smokescreen cloud cluster polarization transmission characteristic simulation method and device. The method comprises the following steps: dividing a smokescreen cloud cluster into a plurality of grids; the smoke screen cloud cluster comprises at least one radiation substance; determining flow field parameters of radiation substances contained in each grid; determining scattering characteristic parameters of smoke screen particles corresponding to each radiation substance in the smoke screen cloud cluster; and for each grid, inputting the flow field parameter corresponding to the grid and the scattering characteristic parameter of the smoke screen particle corresponding to each radiation substance into a Monte Carlo polarization radiation transmission simulation model, and simulating to obtain the polarization transmission characteristic of the smoke screen cloud cluster. According to the scheme, the polarization transmission characteristics of the smoke clouds can be obtained through simulation, combination of hydromechanics and polarization transmission is achieved, and due to the fact that the fluid parameters can fully reflect the distribution characteristics of the radiation substances in the grids, the polarization transmission characteristics, obtained through simulation, of the smoke clouds are more accurate.

Description

technical field [0001] Embodiments of the present invention relate to the field of optical technology, and in particular, to a method and device for simulating polarization transmission characteristics of smoke clouds. Background technique [0002] Smoke screen is a kind of aerosol particles containing solid or liquid suspended particles. It not only absorbs and scatters the radiation generated by the target and the background, but also emits strong radiation energy, so it can emit light to the target and the background. The radiant energy is effectively shielded. After the smoke screen is released, a smoke screen similar to a "barrier" is formed between the sensor and the target. On the one hand, the radiation energy emitted by the target and the background is attenuated by the extinction effect, and on the other hand, the high-intensity radiation energy emitted by itself can interfere with the sensor. The device reduces the signal-to-noise ratio of the sensor system, ther...

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Problems solved by technology

[0003] At present, the theoretical research of smoke screen simulation by researchers is relatively simple. The smoke screen simulation technology is still limited to the rough appearance, and mainly focuses on the research of visible light, infrared and laser. There are few reports on the research on the polarization transmission characteristics of smoke screen.

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