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2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)最新文献

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Image Colorization Algorithm based on Self-Attention Network 基于自关注网络的图像着色算法
2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2020-12-13 DOI: 10.1109/CSRSWTC50769.2020.9372464
LiDan Wu, T. Tong, Min Du, Qinquan Gao
{"title":"Image Colorization Algorithm based on Self-Attention Network","authors":"LiDan Wu, T. Tong, Min Du, Qinquan Gao","doi":"10.1109/CSRSWTC50769.2020.9372464","DOIUrl":"https://doi.org/10.1109/CSRSWTC50769.2020.9372464","url":null,"abstract":"In the task of colorizing gray image, it has been a challenging problem that the reconstructed color images have blur boundaries. In order to solve this problem, a novel method based on self-attention network is proposed in this work. In order to improve the color effect and increase the color contrast. An end-to-end deep learning model is constructed by using efficient convolution combination and self-attention network to extract image features, to learn the spatial dependence of features and the internal correlation between channels. In this way, the reconstructed performance can be improved with a better color effect and contrast. Using the pixel-wise color loss and the generative adversarial networks loss, the network parameters are optimized continuously to guide the generation of high-quality images. Compared with other state-of-the-art algorithms, the proposed method can result in color images with more clear boundary detail and more natural coloring effect than other approaches.","PeriodicalId":207010,"journal":{"name":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125474076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Design of a Millimeter-Wave High-Gain Wide-Angle Scanning Phased Array Antenna 毫米波高增益广角扫描相控阵天线的设计
2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2020-12-13 DOI: 10.1109/CSRSWTC50769.2020.9372652
Jinwen Zhou, Kai Jiang, Zhihong Zhang, Kerong Xu
{"title":"Design of a Millimeter-Wave High-Gain Wide-Angle Scanning Phased Array Antenna","authors":"Jinwen Zhou, Kai Jiang, Zhihong Zhang, Kerong Xu","doi":"10.1109/CSRSWTC50769.2020.9372652","DOIUrl":"https://doi.org/10.1109/CSRSWTC50769.2020.9372652","url":null,"abstract":"A two-dimensional wide-angle scanning phased array antenna working in Ka-band is proposed in this paper, which takes micro strip patch antenna as the unit. To improve the radiation efficiency, the antenna unit is designed to be L-probe proximity fed and the patch is printed on the undersurface of the substrate. With optimized design of the array antenna, an operating frequency from 34GHz to 36GHz is achieved, while the scanning angle ranges up to ±45 degree in both azimuth and elevation without large deviation in gain. Besides, the grating lobe is suppressed well within ±45 degree in E-plane pattern and H-plane pattern. The gain of the 16×16 array reaches up to 28.6dB.","PeriodicalId":207010,"journal":{"name":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125643756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Broadband Beam Control Using Non-Resonant Metasurface 使用非谐振超表面的宽带波束控制
2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2020-12-13 DOI: 10.1109/csrswtc50769.2020.9372672
Kang Chen, Yi Wang, Q. Cao, You Li
{"title":"Broadband Beam Control Using Non-Resonant Metasurface","authors":"Kang Chen, Yi Wang, Q. Cao, You Li","doi":"10.1109/csrswtc50769.2020.9372672","DOIUrl":"https://doi.org/10.1109/csrswtc50769.2020.9372672","url":null,"abstract":"Compare to conventional metasurface element structure based on resonant structure element, non-resonant mode can largely increase the working bandwidth. Based on this principal, we propose a method to realize the transmission type phase gradient metasurface using a non resonant mode patch, which is based on treating the patch in the element as a pixel and obtaining the phase difference by setting the pixel to empty or full. A design example is given to control the beam direction with a bandwidth of more than 40%.","PeriodicalId":207010,"journal":{"name":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"235 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125759659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Wide-Band and High-Efficiency Hybrid Dielectric Resonator Antenna 宽带高效混合介质谐振器天线
2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2020-12-13 DOI: 10.1109/CSRSWTC50769.2020.9372476
Cong‐Cong Hu, Q. Chu
{"title":"Wide-Band and High-Efficiency Hybrid Dielectric Resonator Antenna","authors":"Cong‐Cong Hu, Q. Chu","doi":"10.1109/CSRSWTC50769.2020.9372476","DOIUrl":"https://doi.org/10.1109/CSRSWTC50769.2020.9372476","url":null,"abstract":"A hybrid dielectric resonator antenna with wideband and high-efficiency is presented in this paper. Pure water is used as the dielectric of the cylindrical resonator antenna. The air layer is inserted between the water and the ground plane to improve the radiation efficiency and increase the bandwidth of the antenna. Moreover, another mode is introduced by using the monopole characteristic of coaxial probe. The probe not only acts as the feed structure, but also participates in the radiation of the antenna. The impedance bandwidth of the antenna achieves 43.7% (3.4 GHz-5.3 GHz) and the radiation efficiency is 70%-90%.","PeriodicalId":207010,"journal":{"name":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"18 794 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115852428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Robustness Analysis of the Dual-band Kink States in Valley-Hall Photonic Topological Insulators 谷-霍尔光子拓扑绝缘子双带扭结态的鲁棒性分析
2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2020-12-13 DOI: 10.1109/csrswtc50769.2020.9372683
Qiaolu Chen, Li Zhang, Yihao Yang, Hongsheng Chen
{"title":"Robustness Analysis of the Dual-band Kink States in Valley-Hall Photonic Topological Insulators","authors":"Qiaolu Chen, Li Zhang, Yihao Yang, Hongsheng Chen","doi":"10.1109/csrswtc50769.2020.9372683","DOIUrl":"https://doi.org/10.1109/csrswtc50769.2020.9372683","url":null,"abstract":"Considerable researches have proved that valley (i.e., a binary degree of freedom), has the potential to become a new candidate of information carriers. In recent years, several researchers have demonstrated photonic topological insulators (PTIs) could support valley-Hall gapless kink states. In this work, we propose a valley-Hall PTI with topological kink states working at two separated frequency bands. Besides, the valley-Hall PTI is in a microwave substrate-integrated circuits. Moreover, we analyze the robustness of kink states by adjusting the strength of the perturbations. In contrast to the previous works, our analysis proposed here demonstrates the significance of the perturbations on the robustness of these kink states.","PeriodicalId":207010,"journal":{"name":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"312 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134010869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design of An Asymmetric Multistage Depressed Collector for terahertz TWTs 太赫兹行波管非对称多级抑制集电极的设计
2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2020-12-13 DOI: 10.1109/CSRSWTC50769.2020.9372638
Yue Ou, Wenxin Liu, Zhengyuan Zhao, Longlong Yang
{"title":"Design of An Asymmetric Multistage Depressed Collector for terahertz TWTs","authors":"Yue Ou, Wenxin Liu, Zhengyuan Zhao, Longlong Yang","doi":"10.1109/CSRSWTC50769.2020.9372638","DOIUrl":"https://doi.org/10.1109/CSRSWTC50769.2020.9372638","url":null,"abstract":"For the purpose of improving the whole efficiency of terahertz traveling wave tubes (TWT), multistage depressed collector is widely used during the design phase. It is tough to collect all the wasted electrons which undergo the beam wave interaction thus generating secondary electron emission in MDC. Emission will increase the back-streaming current that would damage the slow wave structure, effecting the whole microwave tube. In order to tackle this problem, an asymmetric model is proposed in this paper through detailed analysis of the spent beam. According to the simulation results, this asymmetric MDC maintains lower electron streaming backward while keeping high recovery efficiency which shed some light to the researchers.","PeriodicalId":207010,"journal":{"name":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133917449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
A Wrench-Shaped Monopole-Like Slot Antenna For UWB Applications 一种用于超宽带应用的扳手形单极槽天线
2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2020-12-13 DOI: 10.1109/CSRSWTC50769.2020.9372582
Tongyu Ding, Mengyu Wang, Jun Xiao, Jian Shu, Q. Ye
{"title":"A Wrench-Shaped Monopole-Like Slot Antenna For UWB Applications","authors":"Tongyu Ding, Mengyu Wang, Jun Xiao, Jian Shu, Q. Ye","doi":"10.1109/CSRSWTC50769.2020.9372582","DOIUrl":"https://doi.org/10.1109/CSRSWTC50769.2020.9372582","url":null,"abstract":"A novel wrench-shaped monopole-like microstrip slot antenna for ultrawideband (UWB) use is designed and fabricated in this paper. The proposed antenna is composed of a wrench-shaped radiating patch to achieve ultrawide frequency band. The impedance matching is improved by etching double T-shaped slots on the background plane. Measured results show that the UWB antenna has a maximum gain of 5.5 dBi and an impedance bandwidth of 9 GHz (3–12 GHz) which covers entire UWB band. The dimension of this antenna is 35×30×1.6 mm3.","PeriodicalId":207010,"journal":{"name":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131480031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Posture Recognition with Background Noise Elimination Using FMCW Radar 基于FMCW雷达的消除背景噪声的姿态识别
2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2020-12-13 DOI: 10.1109/CSRSWTC50769.2020.9372515
Zhao He, Xinxin Feng, Haifeng Zheng, Wenlong Li
{"title":"Posture Recognition with Background Noise Elimination Using FMCW Radar","authors":"Zhao He, Xinxin Feng, Haifeng Zheng, Wenlong Li","doi":"10.1109/CSRSWTC50769.2020.9372515","DOIUrl":"https://doi.org/10.1109/CSRSWTC50769.2020.9372515","url":null,"abstract":"With the development of social intelligence and information technology, the research on human posture recognition has received extensive attention. In this paper, Posture recognition with background noise elimination using frequency modulated continuous wave (FMCW) radar. Firstly, the radar signal processing is processed by using the method of limiting the range of motion, which effectively eliminates the influence of some static objects. Secondly, Density-Based spatial clustering of applications with noise (DBSCAN) method is adopted to cluster the processed coordinate data onto different clustering groups, so as to eliminate the influence of dynamic and static objects. Finally, the multi-branch deep learning network structure is adopted to effectively eliminate the background noise in different environments. The experimental results based on the collected actual data sets show that the accuracy of human posture recognition is significantly improved.","PeriodicalId":207010,"journal":{"name":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131713724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design of Compact Circular Polarization Electrically Small Antennas 紧凑圆极化电小天线的设计
2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2020-12-13 DOI: 10.1109/CSRSWTC50769.2020.9372547
Yuan Shi, Q. Zeng, Yuqiu Shang, Shuang Wang, Shuting Zhang, Tian Qiu, Yong Wu, Qingqing Si
{"title":"Design of Compact Circular Polarization Electrically Small Antennas","authors":"Yuan Shi, Q. Zeng, Yuqiu Shang, Shuang Wang, Shuting Zhang, Tian Qiu, Yong Wu, Qingqing Si","doi":"10.1109/CSRSWTC50769.2020.9372547","DOIUrl":"https://doi.org/10.1109/CSRSWTC50769.2020.9372547","url":null,"abstract":"The design of a compact circular polarization (CP) electrically small antenna (ESA) is carried out and presented in this paper. The designed antenna consists of a planar circuit board (PCB) on which two 3-dB hybrid couplers are fabricated for providing left-hand circular polarization (LHCP) and right-hand circular polarization (RHCP) waves, and two ceramic substrates covered by thin metal films with the high dielectric constants of 20.5 and 39 and the sizes of 25x25x6 mm and 18×18×4 mm, respectively. This compact CP ESA can realize a coverage of ±75° elevation angle with gain above -4dB in the frequency band of 1518 - 1525 MHz for RHCP and in the band of 1668 - 1675 MHz for LHCP, and a coverage of ±60°elevation angle with gain above - 2dB in the band of 1575.42±1.023 MHz for RHCP.","PeriodicalId":207010,"journal":{"name":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131750645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Active Frequency Selective Surface with Wide Reconfigurable Passband 具有宽可重构通带的主动频率选择表面
2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC) Pub Date : 2020-12-13 DOI: 10.1109/CSRSWTC50769.2020.9372677
Mao Mao, Chao Zhang, Yang Yang, Xiaoxiang He
{"title":"Active Frequency Selective Surface with Wide Reconfigurable Passband","authors":"Mao Mao, Chao Zhang, Yang Yang, Xiaoxiang He","doi":"10.1109/CSRSWTC50769.2020.9372677","DOIUrl":"https://doi.org/10.1109/CSRSWTC50769.2020.9372677","url":null,"abstract":"An active frequency selective surface (AFSS) with wide reconfigurable passband is proposed in this paper. The AFSS adopts compact arrangement, fractal gap introduced, symmetry design and the integrated design of the bias network. The simulation results show that the AFSS obtain a reconfigurable passband ranged from 9.6 to 12.7 GHz by variable diodes. At the same time, it maintains a consistent insertion loss, -3dB bandwidth, polarization stability and angle stability during tuning.","PeriodicalId":207010,"journal":{"name":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133535934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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