Key Laboratory of IR and Low Temperature Plasma of Anhui

Hefei, China

Key Laboratory of IR and Low Temperature Plasma of Anhui

Hefei, China
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Wang Q.-C.,State Key Laboratory of Pulsed Power Laser Technology | Wang Q.-C.,Key Laboratory of IR and Low Temperature Plasma of Anhui | Shi J.-M.,State Key Laboratory of Pulsed Power Laser Technology | Shi J.-M.,Key Laboratory of IR and Low Temperature Plasma of Anhui | And 6 more authors.
Guangdian Gongcheng/Opto-Electronic Engineering | Year: 2013

In order to acquire polarization information of target and background, hyperspectral polarization image system based on Liquid Crystal Variable Retarders (LCVR) and Acousto-optic Tunable Filter (AOTF) was designed to improve the accuracy of detection of target and background. Firstly, the principle of polarization detection and the work principle of AOTF were described. And then the structure of the system was given. In the mean while, the parameter of optic component was distributed reasonably. Finally, the hyperspectral polarization images captured by the system were analyzed through the polarization information process software programmed by MATLAB. The calculated results show that the polarimetric and spectral characteristics of target are obvious. The system is of significance for object detection and recognition.


Liu J.,State Key Laboratory of Pulsed Power Laser Technology | Liu J.,Key Laboratory of IR and Low Temperature Plasma of Anhui | Shi J.,State Key Laboratory of Pulsed Power Laser Technology | Shi J.,Key Laboratory of IR and Low Temperature Plasma of Anhui | And 4 more authors.
Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering | Year: 2012

Calculation model was put forward to solve the numeric problem that how to identify the range of the pattern painting camouflage's emissivity. Effect of the change of 8-14 μm waveband average emissivity ε t on the target's radiation temperature T R was inferred and calculated. Based on the stealth criterion of 4 K radiation temperature difference, the range of the emissivity ε t for different target's temperature T was calculated and analyzed. The relationship of the emissivity difference Δε t of the spots adjacent to each other and the fixed spot's emissivity ε 1, the target's temperature T was also discussed. The result shows that the conclusion plays guiding role in preparation of pattern painting camouflage.

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