Mr. Shouye Lv Profile

Shouye Lv

at Beijing Institute of Remote Sensing Information

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Publications (3)

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Proceedings Article | 18 March 2024 Paper

Experiment on protection performance of plasma array to 6GHz high-power microwave

Yang Liu, Shouye Lv, Jinzhou Li, Gang Meng, Shuai Liao, Jiaming Shi

Proceedings Volume 13104, 131040X (2024) https://doi.org/10.1117/12.3021652

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For purpose of the electromagnetic pulse (EMP) protection research, a double-layer barrier of cylindrical plasma array was designed, and its protective performance to 6GHz high-power microwave (HPM) was conducted experimentally. Combining the distribution of the discharge plasma array, the shielding effectiveness of the double-layer plasma on 6GHz HPM pulse was studied. The main research contents and conclusions are as follows: The transmission energy of HPM decreased as the increase of plasma electron density, indicating an improved protection effect, with both double-layer and single-layer plasma array. Besides, the results showed that the transmission attenuation of HPM in double-layer structure was greater than that in single-layer structure because of the interlayer reflection. In addition, an interesting phenomenon was discovered during the experiment, which was that the boundary plasma units had a significant impact on the HPM transmission. The shielding effect of HPM was better with opening seven plasma units than that with opening whole plasma array. Finally, the spectral characteristics and transmission coefficients of the HPM were presented by Fourier transform, and the results of the protective performance were consistent with the above-mentioned time-domain analysis. The experiment results in this paper are of great significance in protecting against HPM based on plasma.

Proceedings Article | 4 April 2023 Paper

Simulation analysis of the HPM propagation along the femtosecond laser plasma double-line

Yang Liu, Shouye Lv, Jinzhou Li, Xiaobin Li, Yan He, Jiaming Shi

Proceedings Volume 12617, 126173S (2023) https://doi.org/10.1117/12.2666127

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The transmission of High-Power Microwave (HPM) with a frequency of 1 GHz in a plasma double-line induced by intense femtosecond laser pulses is discussed by CST software. The influence of plasma electron density and collision frequency on HPM transmission performance is analyzed especially. The simulation results indicate that, the influence of plasma electron density on the transmission performance of HPM along the double-line is slight when the electron density is in the range of 10¹⁵ cm^-3 ~10¹⁷ cm^-3. It can also be obtained that the incident EM wave can propagate around the plasma double-line rather than in the over-dense plasma. We also discover that the attenuation value of the EM wave increases significantly with increasing the plasma collision frequency. Meanwhile, the attenuation value of the EM along the plasma transmission line can be calculated at approximately 0.94 dB/m and 1.56 dB/m when the plasma collision frequencies are 6×10⁹ Hz and 1.5×10¹¹ Hz, respectively. As can be seen, it is not necessary to increase the electron density of femtosecond laser plasma for achieving a high HPM transmission performance in the future applications.

Proceedings Article | 18 March 2022 Paper

A height inversion scheme of cylindrical oil tank with single high-resolution image

En Long, Shouye Lv, Xiaofei Qu, Guangling Lai, Yuke Yang, Jisheng Du

Proceedings Volume 12168, 121680E (2022) https://doi.org/10.1117/12.2631178

KEYWORDS: Image enhancement, Satellites, Satellite imaging, Earth observing sensors, Image resolution, Remote sensing, Sun, Image processing, Error analysis, Photography

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Accurate extraction of the height of tanks based on remote sensing images is very important in engineering applications. An efficient scheme to extract the height of oil tanks based on a single high-resolution satellite images with same-name-arc-distance (SNAD) is proposed in this paper. Firstly, image enhancement and geometric correction are carried out on remote sensing images with oil tanks, which makes the image not only have spatial geographic information, but also sharpens the boundaries of the shadows of oil tanks. Secondly, the technology of automatic detection and interpretation by experts for the boundaries of oil tanks’ shadows was used to identify and locate the same-name-arc-edge (SNAE). Thirdly, SNAD was proposed and the value of SNAD was calculated using the coordinate model of same-name-arc-point (SNAP). Finally, the heights of oil tanks can be extracted by using a new cylinder height measuring model. In order to verify the validity and feasibility of the proposed scheme, four sub-meter satellite images at different times were used to measure the heights of the same oil tank. Experiments show that SNAD is not only easy to interact and operate, but also has high precision and low computation complexity. Therefore, it would be very useful in engineering applications.

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