Pub Date : 2017-10-01DOI: 10.1109/ICEMI.2017.8265820
Li Zhonghu, Zhang Lin, Wang Jinming, Yan Junhong, Li Kang
According to the special background and actual demand of pipeline internal corrosion measurement, this paper designs the hardware system of pipeline internal surface corrosion image acquisition based on binocular vision, and re-optimizes the design of the original hardware platform. In order to meet the requirements of subsequent feature extraction, stereo matching and 3D reconstruction for image quality, The emphasis is to study image preprocessing method. This paper adopts adaptive median filtering method to remove image noise, histogram equalization and histogram normalization method to balance the luminance difference of the details, through image sharpening to enhance the details of the image and the edge of the image, so that the blurred image becomes clearer, to achieve the desired function.
{"title":"Research on image acquisition and preprocessing method for visual measurement of pipeline inner surface corrosion","authors":"Li Zhonghu, Zhang Lin, Wang Jinming, Yan Junhong, Li Kang","doi":"10.1109/ICEMI.2017.8265820","DOIUrl":"https://doi.org/10.1109/ICEMI.2017.8265820","url":null,"abstract":"According to the special background and actual demand of pipeline internal corrosion measurement, this paper designs the hardware system of pipeline internal surface corrosion image acquisition based on binocular vision, and re-optimizes the design of the original hardware platform. In order to meet the requirements of subsequent feature extraction, stereo matching and 3D reconstruction for image quality, The emphasis is to study image preprocessing method. This paper adopts adaptive median filtering method to remove image noise, histogram equalization and histogram normalization method to balance the luminance difference of the details, through image sharpening to enhance the details of the image and the edge of the image, so that the blurred image becomes clearer, to achieve the desired function.","PeriodicalId":275568,"journal":{"name":"2017 13th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121884427","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}
Pub Date : 2017-10-01DOI: 10.1109/ICEMI.2017.8265811
Zhu Min, Wang Shuhu, Deng Cong, Jiang Xu
The evaluation of human radiation dose and the biological effect caused by radiation are one of the important tasks of nuclear medicine and radiation protection. Tissue Equivalent Proportional Counter can be used to measure the distribution of energy deposition in micro-space, and it is an important experimental method to study the interaction process of micron-scale charged particles and matter. By using the micro-dose spectroscopy, we can study the relationship between radiative deposition energy distribution and radiation biological effect, thus establish the radiation biological effect of different particles, and provide technical parameters for macroscopic dosimetry. Based on Geant4 software, a physical process simulation ability of Tissue Equivalent Proportional Counter(TEPC) is established to realize the physical modeling of the detector structure; The gamma ray and neutron nuclear reaction database, particle interface function, physical process tracking interface function, output interface function of the software is used to simulating the particles in the detector energy deposition process. Simulation experimental results show that theoretical calculation model based on GEANT4 for the Micro-dosimetry simulation study of TEPC is reliable. This is basically consistent with the principle of DNA scaling, the direction of development is to realize the simulation of DNA scale action process, to provide experimental verification method for the theoretical modeling of the interaction between Ray and matter in DNA scale, and to provide an experimental means for understanding the radiation hazard of the human body in depth.
{"title":"Modeling and simulation of TEPC based on GEANT4","authors":"Zhu Min, Wang Shuhu, Deng Cong, Jiang Xu","doi":"10.1109/ICEMI.2017.8265811","DOIUrl":"https://doi.org/10.1109/ICEMI.2017.8265811","url":null,"abstract":"The evaluation of human radiation dose and the biological effect caused by radiation are one of the important tasks of nuclear medicine and radiation protection. Tissue Equivalent Proportional Counter can be used to measure the distribution of energy deposition in micro-space, and it is an important experimental method to study the interaction process of micron-scale charged particles and matter. By using the micro-dose spectroscopy, we can study the relationship between radiative deposition energy distribution and radiation biological effect, thus establish the radiation biological effect of different particles, and provide technical parameters for macroscopic dosimetry. Based on Geant4 software, a physical process simulation ability of Tissue Equivalent Proportional Counter(TEPC) is established to realize the physical modeling of the detector structure; The gamma ray and neutron nuclear reaction database, particle interface function, physical process tracking interface function, output interface function of the software is used to simulating the particles in the detector energy deposition process. Simulation experimental results show that theoretical calculation model based on GEANT4 for the Micro-dosimetry simulation study of TEPC is reliable. This is basically consistent with the principle of DNA scaling, the direction of development is to realize the simulation of DNA scale action process, to provide experimental verification method for the theoretical modeling of the interaction between Ray and matter in DNA scale, and to provide an experimental means for understanding the radiation hazard of the human body in depth.","PeriodicalId":275568,"journal":{"name":"2017 13th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124163807","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}
Pub Date : 2017-10-01DOI: 10.1109/ICEMI.2017.8265762
Wang Yong, Liu Qing, Wang Lei, Shen Hao
The system uses RFID radio frequency identification technology and indoor locating technology to realize the real-time locating monitoring of warehouse goods. This paper puts forward a warehouse security system scheme based on RFID locating technology. In view of the shortcomings of the current indoor locating algorithm, the VIRE algorithm is further optimized from two aspects of “adjacent map optimization” and “error correcting method”. Through the Matlab simulation, the improved VIRE locating algorithm is simulated and compared. The simulation results show that the algorithm is optimized, and the accuracy of VIRE indoor locating is improved effectively. The system can improve the working mode of warehouse security management, effectively reduce the workload of warehouse managers and improve the efficiency of warehouse management. In addition, it helps to make up the loopholes in the security management of warehouse goods and reduce the risk of loss of goods, thus it can be used for reference in the study of warehouse security management system.
{"title":"Improvement of RFID locating algorithm in warehouse security system","authors":"Wang Yong, Liu Qing, Wang Lei, Shen Hao","doi":"10.1109/ICEMI.2017.8265762","DOIUrl":"https://doi.org/10.1109/ICEMI.2017.8265762","url":null,"abstract":"The system uses RFID radio frequency identification technology and indoor locating technology to realize the real-time locating monitoring of warehouse goods. This paper puts forward a warehouse security system scheme based on RFID locating technology. In view of the shortcomings of the current indoor locating algorithm, the VIRE algorithm is further optimized from two aspects of “adjacent map optimization” and “error correcting method”. Through the Matlab simulation, the improved VIRE locating algorithm is simulated and compared. The simulation results show that the algorithm is optimized, and the accuracy of VIRE indoor locating is improved effectively. The system can improve the working mode of warehouse security management, effectively reduce the workload of warehouse managers and improve the efficiency of warehouse management. In addition, it helps to make up the loopholes in the security management of warehouse goods and reduce the risk of loss of goods, thus it can be used for reference in the study of warehouse security management system.","PeriodicalId":275568,"journal":{"name":"2017 13th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"208 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123335721","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}
Pub Date : 2017-10-01DOI: 10.1109/ICEMI.2017.8265720
Xue Fengguo, Chong Wei, Han Liang, Qu Bingyang, Gao Feng
Select the ATmega128 microcontroller as the master chip, a low-cost, full functional, esay-using, early warning system for monitoring the greenhouse agricultural meteorological elements is developed, which is flexible and practicable for both monitoring and warning the environmental temperature and humidity and other elements in greenhouse. In the range of 0 °C– 50 °C, the resolutions of air temperature and ground temperature are both higher than 0.1 °C, the accuracy is better than 0.5 °C. In the range of 0 °C–50 °C, the air humidity resolution can up to1%, the accuracy is6%when the air humidity≤ 80%, while the accuracy is 9%owhenthe air humidity ≥ 80%. The system can collect the meteorological elements of greenhouse in a high density, at the same time, all measurements are under the automatic real-time monitoring, if the value exceeds the normal range set in advance, the system will alarm which will alert the manual intervention to guarantee the good growth of crops in the greenhouse.
{"title":"Research and design of monitoring and early warning system for agricultural meteorological element in greenhouse","authors":"Xue Fengguo, Chong Wei, Han Liang, Qu Bingyang, Gao Feng","doi":"10.1109/ICEMI.2017.8265720","DOIUrl":"https://doi.org/10.1109/ICEMI.2017.8265720","url":null,"abstract":"Select the ATmega128 microcontroller as the master chip, a low-cost, full functional, esay-using, early warning system for monitoring the greenhouse agricultural meteorological elements is developed, which is flexible and practicable for both monitoring and warning the environmental temperature and humidity and other elements in greenhouse. In the range of 0 °C– 50 °C, the resolutions of air temperature and ground temperature are both higher than 0.1 °C, the accuracy is better than 0.5 °C. In the range of 0 °C–50 °C, the air humidity resolution can up to1%, the accuracy is6%when the air humidity≤ 80%, while the accuracy is 9%owhenthe air humidity ≥ 80%. The system can collect the meteorological elements of greenhouse in a high density, at the same time, all measurements are under the automatic real-time monitoring, if the value exceeds the normal range set in advance, the system will alarm which will alert the manual intervention to guarantee the good growth of crops in the greenhouse.","PeriodicalId":275568,"journal":{"name":"2017 13th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124024762","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}
Pub Date : 2017-10-01DOI: 10.1109/ICEMI.2017.8265704
Jin Haiwei, Z. Lan, Qin Li, Tong Xin
MPM realizes the combination of solid-state power devices and vacuum electronic devices and has both advantages, widely used in military and commercial fields such as radar, electronic countermeasures, active bait, phased array and space communication. MPM module consists of three parts: 1) broadband, miniaturized vacuum power amplifier TWT (VPB TWT), the final amplifier of MPM module; 2) broadband, low noise microwave solid-state amplifier (SSA), pre-amplifier of VPB TWT;3) miniaturized, high-power integrated high-voltage power supply (IPC), and power supply which providing all the high and low voltage to VPB TWT, SSA and module monitoring. By properly distributing the gain between SSA and VPB TWT, MPM has both merit of the vacuum electronics and the solid-state devices. In the United States, 1991 MPM project formally implemented, then unique performance and superior performance of MPM attracted worldwide attention, and Europe and Japan have also launched active MPM and VPB TWT research programs with the same goals as those of the United States. After nearly three decades of development, the company's MPM products of Europe and the United States get miniaturized, serialized, modular, and its reliability was further optimized. Its development trend can be summarized as the following four points. miniaturization, the MPM parts need to be effectively integrated within a structure. Miniaturized TWT, the slow wave system manufacturing process must be replaced. To reduce the length of TWT, it is necessary to reduce the gain of TWT. The loss gain requires a solid state amplifier to compensate. Miniaturized SSA, combined with MMIC and microwave integrated technology, using high-density packaging technology, the researchers developed highly integrated microwave solid-state amplifier, to achieve the TWT excitation, equalization and phase shift and other functions. Miniaturized high-voltage power supply, the development of integrated power supply, especially enormous the power of the volume and stability of integrated power supply, is important to the development of MPM. Compared to the traditional linear power supply, integrated power supply greatly reduces its complexity, size, weight and cost.
{"title":"Status and development of MPM","authors":"Jin Haiwei, Z. Lan, Qin Li, Tong Xin","doi":"10.1109/ICEMI.2017.8265704","DOIUrl":"https://doi.org/10.1109/ICEMI.2017.8265704","url":null,"abstract":"MPM realizes the combination of solid-state power devices and vacuum electronic devices and has both advantages, widely used in military and commercial fields such as radar, electronic countermeasures, active bait, phased array and space communication. MPM module consists of three parts: 1) broadband, miniaturized vacuum power amplifier TWT (VPB TWT), the final amplifier of MPM module; 2) broadband, low noise microwave solid-state amplifier (SSA), pre-amplifier of VPB TWT;3) miniaturized, high-power integrated high-voltage power supply (IPC), and power supply which providing all the high and low voltage to VPB TWT, SSA and module monitoring. By properly distributing the gain between SSA and VPB TWT, MPM has both merit of the vacuum electronics and the solid-state devices. In the United States, 1991 MPM project formally implemented, then unique performance and superior performance of MPM attracted worldwide attention, and Europe and Japan have also launched active MPM and VPB TWT research programs with the same goals as those of the United States. After nearly three decades of development, the company's MPM products of Europe and the United States get miniaturized, serialized, modular, and its reliability was further optimized. Its development trend can be summarized as the following four points. miniaturization, the MPM parts need to be effectively integrated within a structure. Miniaturized TWT, the slow wave system manufacturing process must be replaced. To reduce the length of TWT, it is necessary to reduce the gain of TWT. The loss gain requires a solid state amplifier to compensate. Miniaturized SSA, combined with MMIC and microwave integrated technology, using high-density packaging technology, the researchers developed highly integrated microwave solid-state amplifier, to achieve the TWT excitation, equalization and phase shift and other functions. Miniaturized high-voltage power supply, the development of integrated power supply, especially enormous the power of the volume and stability of integrated power supply, is important to the development of MPM. Compared to the traditional linear power supply, integrated power supply greatly reduces its complexity, size, weight and cost.","PeriodicalId":275568,"journal":{"name":"2017 13th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125010862","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}
Pub Date : 2017-10-01DOI: 10.1109/ICEMI.2017.8266003
L. Xia, Qi Ningwu, Wang Shuo
Based on master meter principle, a gas flowrate calibration facility with adjustable pressure and temperature is designed. The working principle and structure of this facility is detailly introduced. The calibration method of gas flowmeters is given and the uncertainty is evaluated. With this facility, the gas pressure and temperature can be continuously adjusted, to simulate the practical working pressure and temperature of the tested flowmeter. Therefore, it is suitable for calibrating gas flowmeters, especially those working under high pressure and high temperature conditions. Experimental results show that he proposed facility is effective in calibrating vortex flowmeter at different pressure and temperature.
{"title":"A gas flowrate calibration facility with adjustable pressure and temperature","authors":"L. Xia, Qi Ningwu, Wang Shuo","doi":"10.1109/ICEMI.2017.8266003","DOIUrl":"https://doi.org/10.1109/ICEMI.2017.8266003","url":null,"abstract":"Based on master meter principle, a gas flowrate calibration facility with adjustable pressure and temperature is designed. The working principle and structure of this facility is detailly introduced. The calibration method of gas flowmeters is given and the uncertainty is evaluated. With this facility, the gas pressure and temperature can be continuously adjusted, to simulate the practical working pressure and temperature of the tested flowmeter. Therefore, it is suitable for calibrating gas flowmeters, especially those working under high pressure and high temperature conditions. Experimental results show that he proposed facility is effective in calibrating vortex flowmeter at different pressure and temperature.","PeriodicalId":275568,"journal":{"name":"2017 13th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124055745","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}
Pub Date : 2017-10-01DOI: 10.1109/ICEMI.2017.8265939
Kong Deshan, Jiang Dong, Liu Xukun, Wang Deyu
In order to realize the subway acceleration measurement, a magnetic suspension vibrator structure was adopted, and a magnetic suspension acceleration measuring system was designed. The magnetic field variation in the acceleration process was analyzed and simulated by using simulation software. The dynamic equations of the magnetic suspension vibrator under the accelerated motion were deduced. The sensitivity of the measurement system is improved because the method can effectively overcome the friction that the traditional accelerometer can not be avoided. The performance of magnetic levitation acceleration measurement system was analyzed by experimental results. The acceleration of Metro locomotive was measured practically, and the feasibility of the system was verified by taking the experimental data of 3D gyro accelerometer as reference. The experimental results show that the sensitivity of this method is higher. The design method provides a new idea for the design of acceleration sensors.
{"title":"Research on subway acceleration measurement method based on magnetic levitation technology","authors":"Kong Deshan, Jiang Dong, Liu Xukun, Wang Deyu","doi":"10.1109/ICEMI.2017.8265939","DOIUrl":"https://doi.org/10.1109/ICEMI.2017.8265939","url":null,"abstract":"In order to realize the subway acceleration measurement, a magnetic suspension vibrator structure was adopted, and a magnetic suspension acceleration measuring system was designed. The magnetic field variation in the acceleration process was analyzed and simulated by using simulation software. The dynamic equations of the magnetic suspension vibrator under the accelerated motion were deduced. The sensitivity of the measurement system is improved because the method can effectively overcome the friction that the traditional accelerometer can not be avoided. The performance of magnetic levitation acceleration measurement system was analyzed by experimental results. The acceleration of Metro locomotive was measured practically, and the feasibility of the system was verified by taking the experimental data of 3D gyro accelerometer as reference. The experimental results show that the sensitivity of this method is higher. The design method provides a new idea for the design of acceleration sensors.","PeriodicalId":275568,"journal":{"name":"2017 13th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"156 10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128719512","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}
Pub Date : 2017-10-01DOI: 10.1109/ICEMI.2017.8265913
Fu Zai-ming, Z. Lizhong, Z. Wenjian, Zhao Yijiu
Data generator (DG) plays a very important role in digital testing, which has the characteristics of large data capacity, strong and high-efficiency programmable ability. This paper presents a new data editor of the DG based on hierarchical design, which divides the data editor into data unit editing and sequence editing. To program the deep storage pattern data high-efficiency and convenience, the data unit editing is realized by classification methods: patterns data customization, incremental editing, patterns data import. The Patterns customizers are designed to generate rich popular patterns. The function of incremental editing is to edit user-defined data. And import external pattern data is permitted. Sequence editing is designed to arrange data units and enhance the programmable length of the data editor. The function of the designed data editor is verified in engineering.
{"title":"Design of data editor for deep storage data generator","authors":"Fu Zai-ming, Z. Lizhong, Z. Wenjian, Zhao Yijiu","doi":"10.1109/ICEMI.2017.8265913","DOIUrl":"https://doi.org/10.1109/ICEMI.2017.8265913","url":null,"abstract":"Data generator (DG) plays a very important role in digital testing, which has the characteristics of large data capacity, strong and high-efficiency programmable ability. This paper presents a new data editor of the DG based on hierarchical design, which divides the data editor into data unit editing and sequence editing. To program the deep storage pattern data high-efficiency and convenience, the data unit editing is realized by classification methods: patterns data customization, incremental editing, patterns data import. The Patterns customizers are designed to generate rich popular patterns. The function of incremental editing is to edit user-defined data. And import external pattern data is permitted. Sequence editing is designed to arrange data units and enhance the programmable length of the data editor. The function of the designed data editor is verified in engineering.","PeriodicalId":275568,"journal":{"name":"2017 13th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130578880","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}
Pub Date : 2017-10-01DOI: 10.1109/ICEMI.2017.8265829
Cui Gang, Shi Longfei, Ma Jiazhi, Liu Jian
In this paper, the use of polarization information to solve the chaff dilution interference led to the target recognition ability to reduce the practical problems. Through the CST electromagnetic software, the polarization characteristics of the ship target are calculated, and the radar echo signal of the ship target in different receiving polarization mode and different observation angle is obtained, and the polarization characteristic of the target is obtained. The polarization characteristics of chaff interference are obtained by theoretical calculation and numerical simulation. The target results show that the radar echo polarization ratio of the ship is much larger than that of the chaff interference. The conclusion of the study is helpful to realize the target recognition based on polarization characteristics and improve the radar performance and target recognition ability.
{"title":"Identification of chaff interference based on polarization parameter measurement","authors":"Cui Gang, Shi Longfei, Ma Jiazhi, Liu Jian","doi":"10.1109/ICEMI.2017.8265829","DOIUrl":"https://doi.org/10.1109/ICEMI.2017.8265829","url":null,"abstract":"In this paper, the use of polarization information to solve the chaff dilution interference led to the target recognition ability to reduce the practical problems. Through the CST electromagnetic software, the polarization characteristics of the ship target are calculated, and the radar echo signal of the ship target in different receiving polarization mode and different observation angle is obtained, and the polarization characteristic of the target is obtained. The polarization characteristics of chaff interference are obtained by theoretical calculation and numerical simulation. The target results show that the radar echo polarization ratio of the ship is much larger than that of the chaff interference. The conclusion of the study is helpful to realize the target recognition based on polarization characteristics and improve the radar performance and target recognition ability.","PeriodicalId":275568,"journal":{"name":"2017 13th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130730255","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}
Pub Date : 2017-10-01DOI: 10.1109/ICEMI.2017.8265757
Xing Jie, Kang Qing, Zhang Xuan, Li Feng
With the development of electric propulsion and payload technology, Silicon Carbide which is a typical semiconductor device with wide bandgap will play a greater role in spacecraft power system in the future. It has the advantages as high breakdown voltage, high electron drift velocity, high thermal conductivity, high voltage, high frequency and high anti-radiation. This paper mainly introduces the new research progress of SiC based power diodes, JFETs and MOSFETs, as well as discusses the application prospects of SiC power semiconductor devices in spacecraft power systems.
{"title":"Application Prospect of SiC Power Semiconductor Devices in Spacecraft Power Systems","authors":"Xing Jie, Kang Qing, Zhang Xuan, Li Feng","doi":"10.1109/ICEMI.2017.8265757","DOIUrl":"https://doi.org/10.1109/ICEMI.2017.8265757","url":null,"abstract":"With the development of electric propulsion and payload technology, Silicon Carbide which is a typical semiconductor device with wide bandgap will play a greater role in spacecraft power system in the future. It has the advantages as high breakdown voltage, high electron drift velocity, high thermal conductivity, high voltage, high frequency and high anti-radiation. This paper mainly introduces the new research progress of SiC based power diodes, JFETs and MOSFETs, as well as discusses the application prospects of SiC power semiconductor devices in spacecraft power systems.","PeriodicalId":275568,"journal":{"name":"2017 13th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128247982","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}
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