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2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC)最新文献

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A Wave-field Decomposition for Reverse Time Migration to Reduce the Low-wavenumber Artifact 一种用于逆时偏移的波场分解方法以减少低波数伪影
2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC) Pub Date : 2019-07-01 DOI: 10.1109/CSQRWC.2019.8799134
Fei Lei, Xinrong Mao, Jin Liu, Yuanguo Zhou
{"title":"A Wave-field Decomposition for Reverse Time Migration to Reduce the Low-wavenumber Artifact","authors":"Fei Lei, Xinrong Mao, Jin Liu, Yuanguo Zhou","doi":"10.1109/CSQRWC.2019.8799134","DOIUrl":"https://doi.org/10.1109/CSQRWC.2019.8799134","url":null,"abstract":"Reverse time migration (RTM) is a powerful tool for reconstructing images, and has great advantage in imaging complex velocity models. However, traditional cross-correlation imaging condition brings low-wavenumber artifact (LWA). In this paper, we present a wave-field decomposition method to reduce these high-amplitude noises and achieve better imaging results.The main procedures include decompose source and receiver wave fields into up-going and down-going wave components, then a cross-correlation imaging condition are adopted to image the wave fields respectively. Several numerical examples indicate that the proposed method can effectively suppress LWA and obtain high-quality reconstructed images.","PeriodicalId":254491,"journal":{"name":"2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131767661","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 Triband Antenna for WLAN and WiMAX Application 用于WLAN和WiMAX应用的三波段天线设计
2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC) Pub Date : 2019-07-01 DOI: 10.1109/CSQRWC.2019.8799338
Yuntao Jin, Hongxing Zheng, Ruipeng Liu, Mengjun Wang
{"title":"Design of Triband Antenna for WLAN and WiMAX Application","authors":"Yuntao Jin, Hongxing Zheng, Ruipeng Liu, Mengjun Wang","doi":"10.1109/CSQRWC.2019.8799338","DOIUrl":"https://doi.org/10.1109/CSQRWC.2019.8799338","url":null,"abstract":"A triband antenna is designed, which is fed by coplanar waveguide (CPW), and operated at 2.45 GHz, 3.5 GHz and 5.2 GHz. To operate the three bands above, the antenna is grooved with three symmetrical L-shaped slots and one slot of rectangular ring. The CPW structure is used to reduce thickness. The overall dimension, 25 mm × 26 mm × 1.5 mm, is obtained. The designed antenna has been fabricated, and the experimental results show that it can work well in the frequency bands of WLAN and WiMAX.","PeriodicalId":254491,"journal":{"name":"2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134142957","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: 1
Side Lobes Suppression for linear Antenna Array by Using Bat Algorithms 基于Bat算法的线性天线阵侧瓣抑制
2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC) Pub Date : 2019-07-01 DOI: 10.1109/CSQRWC.2019.8799193
Yusheng Pan, Jiao Zhang
{"title":"Side Lobes Suppression for linear Antenna Array by Using Bat Algorithms","authors":"Yusheng Pan, Jiao Zhang","doi":"10.1109/CSQRWC.2019.8799193","DOIUrl":"https://doi.org/10.1109/CSQRWC.2019.8799193","url":null,"abstract":"This paper describes a new method for Lower side-lobe level for a linear antenna array using bat algorithm. The algorithm obtains lower side-lobe level by changing the position of the array elements with uniform spacing. Bat algorithm is compared with the genetic algorithm, and the simulation results are shown below. The bat algorithm converges faster and more easily to obtain an optimal solution. At the end of the article, we used different numerical comparison examples to prove the effectiveness of the proposed method.","PeriodicalId":254491,"journal":{"name":"2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC)","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132812879","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
Solar spectral radiance simulation and sensitivity analysis in visible band 可见光波段太阳光谱辐射模拟及灵敏度分析
2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC) Pub Date : 2019-07-01 DOI: 10.1109/CSQRWC.2019.8799135
Jinlu Li, L. Bai, P. Gao
{"title":"Solar spectral radiance simulation and sensitivity analysis in visible band","authors":"Jinlu Li, L. Bai, P. Gao","doi":"10.1109/CSQRWC.2019.8799135","DOIUrl":"https://doi.org/10.1109/CSQRWC.2019.8799135","url":null,"abstract":"Based on the current development of atmospheric satellite remote sensing technology and atmospheric radiation model, the latest version of SCIATRAN3.8 model is selected to simulate the solar spectrum radiance in visible band. After analyzing the structure and parameter classification assignment of the model. Combined with the theory of atmospheric radiation transfer, select the solar zenith angle, surface reflectance as parameters, simulate the solar spectrum radiance value in visible band, and sensitivity analysis is performed. On this basis, according to the research goal, compare the simulation of SCIATRAN3.8 and MODTRAN4.0. Which verifies the correctness of the SCIATRAN3.8 forward model, and provides a certain for the future research on atmospheric radiation transfer.","PeriodicalId":254491,"journal":{"name":"2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC)","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122077715","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 Electron Optics System for 220GHz Traveling Wave Tube 220GHz行波管电子光学系统的设计
2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC) Pub Date : 2019-07-01 DOI: 10.1109/CSQRWC.2019.8799316
Zhao Chao, L. Wenxin, Guo Xin, Wang Meng, Wang Yong
{"title":"Design of an Electron Optics System for 220GHz Traveling Wave Tube","authors":"Zhao Chao, L. Wenxin, Guo Xin, Wang Meng, Wang Yong","doi":"10.1109/CSQRWC.2019.8799316","DOIUrl":"https://doi.org/10.1109/CSQRWC.2019.8799316","url":null,"abstract":"Electron optics system (EOS) which includes Electron gun and focusing system is a key part of Traveling wave tube (TWT). In the meantime, focusing system uses periodic permanent magnet (PPM) to reduce the weight and volume of the vacuum electron device. The results show that the passing rate of electron beam is high and its ripple is low. The optimum parameters of EOS are listed as follows: the current emitted from the surface of cathode is about 25mA when the operating voltage is 15kV, the length and diameter of drift tube are 65mm and 0.2mm, respectively.","PeriodicalId":254491,"journal":{"name":"2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125563963","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
Monitoring System for Valuable Chinese Herbal Medicine Growth 中药材生长监测系统
2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC) Pub Date : 2019-07-01 DOI: 10.1109/CSQRWC.2019.8799205
Yingli Zhu, Ziyi Jiang
{"title":"Monitoring System for Valuable Chinese Herbal Medicine Growth","authors":"Yingli Zhu, Ziyi Jiang","doi":"10.1109/CSQRWC.2019.8799205","DOIUrl":"https://doi.org/10.1109/CSQRWC.2019.8799205","url":null,"abstract":"With the development of social economy, the cultivation of Chinese herbal medicine is very common in our country, especially due to the development of modern science and technology and information technology, some modern means is used in Chinese herbal medicine planting process, especially in the process of precious herbal planting. with the help of some modern means and tools, it not only improves artificial cultivation technology of the the Chinese herbal, but also greatly improves the scientization of Chinese herbal medicine planting.This paper designs an intelligent real-time monitoring system to help artificial cultivation of Chinese herbal medicine, which can monitor environment parameters of the Chinese herbal medicine.","PeriodicalId":254491,"journal":{"name":"2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130205101","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
A Dual-Polarized Broadband Horn Antenna for Mm-wave 5G Application 面向毫米波5G应用的双极化宽带喇叭天线
2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC) Pub Date : 2019-07-01 DOI: 10.1109/CSQRWC.2019.8799278
Nan Hu, Wenqing Xie, Q. Zeng, Jianrui Liu, Lixin Zhao, Shuang Liu
{"title":"A Dual-Polarized Broadband Horn Antenna for Mm-wave 5G Application","authors":"Nan Hu, Wenqing Xie, Q. Zeng, Jianrui Liu, Lixin Zhao, Shuang Liu","doi":"10.1109/CSQRWC.2019.8799278","DOIUrl":"https://doi.org/10.1109/CSQRWC.2019.8799278","url":null,"abstract":"This paper proposed a dual-polarized broadband horn antenna for mm-wave 5G application. The operating frequency of the antenna proposed in this paper is 18 to 40GHz. The antenna with VSWR<2, isolation<−20dB, gain>10dB and HPBW>20° is presented, and the radiation patterns maintain a good symmetry in full band. And this antenna has been tested and used in practical applications.","PeriodicalId":254491,"journal":{"name":"2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129260671","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 high selectivity filtering antenna based on multi-coupling path 基于多耦合路径的高选择性滤波天线设计
2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC) Pub Date : 2019-07-01 DOI: 10.1109/CSQRWC.2019.8799163
Sheng-Meng Fu, Jinrong Su, Xinwei Chen
{"title":"Design of high selectivity filtering antenna based on multi-coupling path","authors":"Sheng-Meng Fu, Jinrong Su, Xinwei Chen","doi":"10.1109/CSQRWC.2019.8799163","DOIUrl":"https://doi.org/10.1109/CSQRWC.2019.8799163","url":null,"abstract":"In this paper, a filtering antenna with high selectivity is proposed. The filtering antenna consists of λ/4 resonator and a rectangular patch. The λ/4 resonator is fed by microstrip feed line with short-circuited via. The rectangular patch is used as the radiator of filtering antenna and is fed by the λ/4 resonator through an H shaped aperture in the ground. By introducing a new coupling path between feed line and rectangular patch, two radiation nulls appear at the both sides of the bandpass of gain, which effectively improve the selectivity of the filtering antenna. The design results show that the filtering antenna operates at 3.37 GHz with fractional impedance bandwidth of 10.3%, and two radiation nulls appear at 2.9 GHz and 3.86 GHz.","PeriodicalId":254491,"journal":{"name":"2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122484296","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
MEMS accelerometers testing using a laser feedback interferometer 使用激光反馈干涉仪对MEMS加速度计进行测试
2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC) Pub Date : 2019-07-01 DOI: 10.1109/CSQRWC.2019.8799235
D. Guo, Huimin Zhao, Hui Hao
{"title":"MEMS accelerometers testing using a laser feedback interferometer","authors":"D. Guo, Huimin Zhao, Hui Hao","doi":"10.1109/CSQRWC.2019.8799235","DOIUrl":"https://doi.org/10.1109/CSQRWC.2019.8799235","url":null,"abstract":"This paper proposes a new method for the testing of accelerometers by using a laser feedback interferometer (LFI). In this method, a portion of light from a laser diode is reflected by an external target and then returns back to the laser cavity, laser feedback interference occurs. Depending on various vibration frequencies, fringe counting method or minimum point method is introduced into the interference signal analysis of LFI to determine the sensitivity of accelerometers. Theoretical analysis and experimental results are given. The proposed system is applicable to test accelerometers in industrial applications with a low-cost and simple mechanical structure.","PeriodicalId":254491,"journal":{"name":"2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC)","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123158170","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
Study on the Heat Disspation System Using Thermoelectric Cooling Based on Energy Harvesting for High-power LED 基于能量收集的大功率LED热电冷却散热系统研究
2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC) Pub Date : 2019-07-01 DOI: 10.1109/CSQRWC.2019.8799348
Ning Wang, Cong Gao, Qiu-Min Lu, Hongzhi Jia, G. Sui, Xiumin Gao
{"title":"Study on the Heat Disspation System Using Thermoelectric Cooling Based on Energy Harvesting for High-power LED","authors":"Ning Wang, Cong Gao, Qiu-Min Lu, Hongzhi Jia, G. Sui, Xiumin Gao","doi":"10.1109/CSQRWC.2019.8799348","DOIUrl":"https://doi.org/10.1109/CSQRWC.2019.8799348","url":null,"abstract":"In order to utilize the thermal energy released during the working of high-power light emitting diode (LED), a method combining thermoelectric cooling with energy harvesting is proposed for comprehensively managing the heat energy. In this work, the thermoelectric generator (TEG) as an energy conversion device absorbs heat released by LED, and the thermoelectric cooler (TEC) is used to create a relatively low-temperature environment at the bottom side of TEG. Based on this method, the harvested thermal with induced thermal gradient will be converted into electrical energy. Experimental results demonstrate that the surface temperature of LED can be effectively reduced to 44.5 °C under room temperature of 25 °C with temperature difference of 15.5 K on two sides of TEG. On the basis of energy harvesting technology, the electric energy converted from this thermal energy by TEG can successfully provide long-term power for the blue diode.","PeriodicalId":254491,"journal":{"name":"2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC)","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131901233","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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