Výsledky vyhledávání - "Feiliang Liu"

Clutter suppression method for linear scan indoor near-field RCS measurement based on interferometric SAR

Autor: Haohao Hou, Ming Lyu, Feiliang Liu, Liu Fang, Qunting Ren

Publikováno v: Procedia Computer Science. 187:559-565

Near-field indoor scattering measurement has become an important RCS test and evaluation technique. However, in a closed indoor environment, the test is susceptible to clutter interference. In this paper, a clutter suppression method for indoor near-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ac54095428a418449c51e82561ee5324
https://doi.org/10.1016/j.procs.2021.04.152

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A double-threshold target detection method in detecting low slow small target

Autor: Yulan Liu, Jie Yu, Feiliang Liu, Yang Bai

Publikováno v: Procedia Computer Science. 174:616-624

With the rapid development of Unmanned Aerial Vehicle (UAV), stealth warship and stealth tank, the mission of radar has become more difficult. The modern radar system must detect and track target through strong clutter from many aspect, such as groun

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0d45453a2b3c97cff986e9acb31eb721
https://doi.org/10.1016/j.procs.2020.06.133

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Study on stealth characteristics of metamaterials based on simulated annealing algorithm

Autor: Jie Yu, Yan Wang, Feiliang Liu, Yang Bai

Publikováno v: Procedia Computer Science. 147:221-227

Auxiliary differential equation finite-difference time domain (ADE-FDTD) expressions of drude dispersive medium model are applied to simulate stealth characteristics of metamaterials coating. Then, simulated annealing algorithm is used to optimize el

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d06ab329e063794e770bc01fc1500e02
https://doi.org/10.1016/j.procs.2019.01.230

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Study on resolution characteristic of bistatic RCS measurement based on ambiguity function

Autor: Ming Lv, Chao Gao, Bai Yang, Feiliang Liu

Publikováno v: AOPC 2020: Optical Sensing and Imaging Technology.

For bistatic RCS (Radar Cross Section, RCS) measurements, when the target is away from the base line its range resolution and Doppler resolution of radar are close to those of monostatic radar, when the target is in the vicinity of baseline, the shap

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::484744b99cf1a134a20cd7e5b871fbf5
https://doi.org/10.1117/12.2580155

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Research on monostatic and bistatic RCS of cloaking based on coordinate transformation

Autor: Yunpeng Ma, Guoxu Chen, Jinzu Ji, Jiaxin Jiang, Feiliang Liu

Publikováno v: Optik. 165:117-123

Metamaterials with carefully chosen negative permittivity and permeability can guide electromagnetic wave to bypass a target without any scattering theoretically. This paper uses the basic theory of coordinate transformation to generate such permitti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b317eafe7ed672b249b77a9995558195
https://doi.org/10.1016/j.ijleo.2018.03.063

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Research on Accurate Calibration Method Based on Broad Measurement at a High Grazing Angle

Autor: Chao Gao, Aijun Jia, Feiliang Liu, Yang Bai

Publikováno v: 2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall).

For RCS (Radar Cross Section, RCS) measurements at a high grazing angle, target echo is generally easy to measure because it is much larger than background clutter. However, it is widely known that calibration technology becomes more difficult in thi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ee8f3c87e1fcb58c7a139ede929d022d
https://doi.org/10.1109/piers-fall48861.2019.9021517

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Research on Low RCS Target Measurement Precision by High-Resolution Imaging Method

Autor: Yang Bai, Feiliang Liu, Chao Gao, Yingnan Zhang

Publikováno v: 2018 Eighth International Conference on Instrumentation & Measurement, Computer, Communication and Control (IMCCC).

In actual measurement process, it is not possible to erect metal ball directly on low RCS(Radar Cross Section) pylon, therefore verify measurement precision of low RCS target would be very difficult. In order to solve the problem, we will introduce a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a26d2fa780712cf07e0ca09f9eef42ea
https://doi.org/10.1109/imccc.2018.00086

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Study on Influence of Thickness and Electromagnetic Parameter of Perfectly Matched Layer (PML)

Autor: Jinzu Ji, Feiliang Liu

Publikováno v: The Open Electrical & Electronic Engineering Journal. 8:50-55

Perfectly matched layer (PML) absorbing boundary condition (ABC) is an important technique in finitedifference time-domain (FDTD) when simulating infinite area's electromagnetic behaviour in finite area. A big enough computational area was designed i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4d13875764eefe13a9d635672b096f28
https://doi.org/10.2174/1874129001408010050

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Study on Influence of Targets' Rotation Speed on the RCS Measurement

Autor: Xin Liu, Feiliang Liu, Yingnan Zhang

Publikováno v: IIKI

Radar Cross Section (RCS) measurement is an important means of quantitative evaluation of weapon equipment's stealth performance. To achieve overall targets' RCS, the way of software control rotation angle is applied to record targets' RCS in the cor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bfa761b2b3f0b058d14b61d01fcb5be8
https://doi.org/10.1109/iiki.2016.106

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