Zobrazeno 1 - 10
of 2 860
pro vyhledávání: '"Wang Hongqiang"'
Autor:
LE Dongdong, DENG Qixiang, DU Ansong, WANG Hongqiang, WANG Qingliang, LI Le, HU Eming, LEI Zhiwu, HU Fang
Publikováno v:
He jishu, Vol 47, Iss 8, Pp 080301-080301 (2024)
BackgroundIn uranium mining and smelting, a significant amount of uranium-containing wastewater is generated, which can easily cause groundwater pollution. In polluted groundwater, uranium often combines with carbonates to form more diffusive and mig
Externí odkaz:
https://doaj.org/article/07d8469338c4454ca195736e73d2377e
Autor:
Hua, Xiaoqiang, Peng, Linyu, Liu, Weijian, Cheng, Yongqiang, Wang, Hongqiang, Sun, Huafei, Wang, Zhenghua
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing 61, 5101815, 2023
This paper deals with the problem of detecting maritime targets embedded in nonhomogeneous sea clutter, where limited number of secondary data is available due to the heterogeneity of sea clutter. A class of linear discriminant analysis (LDA)-based m
Externí odkaz:
http://arxiv.org/abs/2409.17911
Publikováno v:
Leida xuebao, Vol 7, Iss 6, Pp 676-684 (2018)
Near-field 3-D imaging based on a scanning array is an important application of Synthetic Aperture Radar (SAR) 3-D imaging technology for civil use. Compared with Single-Input-Single-Output (SISO) arrays, a Multi-Input-Multi-Output (MIMO) scanning sy
Externí odkaz:
https://doaj.org/article/a843186a2ec2400b8325be433e84f2c1
Publikováno v:
Leida xuebao, Vol 7, Iss 1, Pp 22-45 (2018)
With years of development and accumulation, a considerable amount of research has focused on micro-motion, an important auxiliary feature in radar target detection and recognition. With the recent rise of terahertz, micro-motion feature extraction in
Externí odkaz:
https://doaj.org/article/df08d569fec94cdea8a6daa9498acad0
Publikováno v:
Leida xuebao, Vol 7, Iss 1, Pp 127-138 (2018)
Terahertz coded-aperture imaging follows the basic principles of optical coded-aperture imaging and microwave coincidence imaging and is a novel imaging technique. Herein, the wave spatial distribution or illumination pattern is usually obtained by a
Externí odkaz:
https://doaj.org/article/f1368933784147d082b7d9410a77234a
Publikováno v:
Leida xuebao, Vol 7, Iss 1, Pp 139-146 (2018)
To improve the imaging accuracy of Interferometry Inverse Synthetic Aperture Radar (InISAR), in this paper, we propose a novel method based on the joint processing of dual-frequency data. First, we divide the radar echo into two parts in the fast-tim
Externí odkaz:
https://doaj.org/article/954ea036b29a4a61a3d7c0c7d48501fb
Publikováno v:
Leida xuebao, Vol 7, Iss 1, Pp 97-107 (2018)
Echo simulation is a precondition for developing radar imaging systems, algorithms, and subsequent applications. Electromagnetic scattering modeling of the target is key to echo simulation. At terahertz (THz) frequencies, targets are usually of ultra
Externí odkaz:
https://doaj.org/article/2a7bfc5b885d44938f56756b98224396
Publikováno v:
Leida xuebao, Vol 7, Iss 1, Pp 1-21 (2018)
Terahertz radar has unique advantages, including large bandwidth, high resolution, Doppler sensitivity, and anti-interference; it is a significant development in the field of target detection. Herein, the history of electronic and optical terahertz r
Externí odkaz:
https://doaj.org/article/9e95ec7e198742b5b590abadb6c32a4d
Publikováno v:
Leida xuebao, Vol 5, Iss 5, Pp 487-498 (2016)
An optimal waveform design method that fully employs the knowledge of the target and the environment can further improve target detection performance, thus is of vital importance to research. In this paper, methods of radar waveform optimization for
Externí odkaz:
https://doaj.org/article/0aa35766c3654fb6a5bcd178edbbe93d
Publikováno v:
Nanoscale Research Letters, Vol 5, Iss 7, Pp 1102-1106 (2010)
Abstract In this paper, a general low-cost and substrate-independent chemical etching strategy is demonstrated for the synthesis of ZnO nanotubes array. During the chemical etching, the nanotubes array inherits many features from the preformed nanoro
Externí odkaz:
https://doaj.org/article/5f7a3dd16b2c4775b9e5dab84e6a865d