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.2017.8265883
Shi Longfei, Liu Qiaoling, Liu Jian, Pang Chen
Polarimetrie measurement is a prerequisite for applications such as radar target recognition and anti-interference based on polarimetry information. The precision of polarimetric measurement depends on the accuracy of the calibration of polarimetric radar systems. In this paper, a new polarimetric calibration method by designing a high-Precision polarimetric active radar calibrator(PARC) is proposed, which can accurately calibrate the radar transmitting and receiving channels, respectively. System composition and key technologies of the PARC are explained. And then the whole calibration method is provided.
{"title":"Active calibration technology for polarimetrie radar measurement","authors":"Shi Longfei, Liu Qiaoling, Liu Jian, Pang Chen","doi":"10.1109/ICEMI.2017.8265883","DOIUrl":"https://doi.org/10.1109/ICEMI.2017.8265883","url":null,"abstract":"Polarimetrie measurement is a prerequisite for applications such as radar target recognition and anti-interference based on polarimetry information. The precision of polarimetric measurement depends on the accuracy of the calibration of polarimetric radar systems. In this paper, a new polarimetric calibration method by designing a high-Precision polarimetric active radar calibrator(PARC) is proposed, which can accurately calibrate the radar transmitting and receiving channels, respectively. System composition and key technologies of the PARC are explained. And then the whole calibration method is provided.","PeriodicalId":275568,"journal":{"name":"2017 13th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"39 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":"127466195","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.2017.8265856
Gan Yulin, Chen Bingyan, Zhu Changping, L. Changyu, Yi Tian'an, Fang Peisen
Dielectric barrier discharge (DBD) reactors excited by high voltage source working with power density modulation (PDM) have widely used in their industrial applications. For the high efficiency discharge, it is necessary to investigate the variation law of the photoelectric characteristics. In this paper, a volume diffuse DBD is established by means of parallel-plate electrodes. The methods of both the electrical parameter and optical emission spectroscopy (OES) are used to diagnose the electrical and optical parameters of the self-designed DBD cell under various discharge conditions. Meanwhile, the energy efficiency ratios (EERs) of quantum yield of active species in DBD is examined by OES. We deduce a series of formulas to calculate the consumed energy of the reactor by Lissajous figures. Using these formulas, the energy of an applied cycle and the energy consumed in a certain period of time can be obtained. The EERs of quantum yield and the conversion efficiency are not a liner trend with the change of applied voltage and energy. Only increasing the applied energy or voltage will not improve quantum efficiency, when discharge reaches a condition, the production of the active species will reached best value. The diagnostic methods used in the experiment can effectively measure the photoelectric properties of DBD.
{"title":"Photoelectric diagnoses of volume DBD by using power density modulation","authors":"Gan Yulin, Chen Bingyan, Zhu Changping, L. Changyu, Yi Tian'an, Fang Peisen","doi":"10.1109/ICEMI.2017.8265856","DOIUrl":"https://doi.org/10.1109/ICEMI.2017.8265856","url":null,"abstract":"Dielectric barrier discharge (DBD) reactors excited by high voltage source working with power density modulation (PDM) have widely used in their industrial applications. For the high efficiency discharge, it is necessary to investigate the variation law of the photoelectric characteristics. In this paper, a volume diffuse DBD is established by means of parallel-plate electrodes. The methods of both the electrical parameter and optical emission spectroscopy (OES) are used to diagnose the electrical and optical parameters of the self-designed DBD cell under various discharge conditions. Meanwhile, the energy efficiency ratios (EERs) of quantum yield of active species in DBD is examined by OES. We deduce a series of formulas to calculate the consumed energy of the reactor by Lissajous figures. Using these formulas, the energy of an applied cycle and the energy consumed in a certain period of time can be obtained. The EERs of quantum yield and the conversion efficiency are not a liner trend with the change of applied voltage and energy. Only increasing the applied energy or voltage will not improve quantum efficiency, when discharge reaches a condition, the production of the active species will reached best value. The diagnostic methods used in the experiment can effectively measure the photoelectric properties of DBD.","PeriodicalId":275568,"journal":{"name":"2017 13th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"8 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":"116943315","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.2017.8265952
Xiang Min, Qu Qinqin, Yu Xiangchun, Sun Yongmin
For effectively reducing the packet loss rate and time delay when IPv6 is applied to power line communication system, the redundant routing mechanism based on hierarchical forwarding tree is put forward. A redundancy routing mechanism of IPv6 based on hierarchical forwarding tree is designed for power line carrier communication networks. The hierarchical forwarding tree model for power line carrier networks is constructed by designing IPv6 automatic address allocation method. Each node only needs to maintain a few forwarding entries corresponding to the number of child nodes to generate routing information fast in the subnet. The redundancy routing mechanism of backup parent nodes is designed based on the link quality, address space and networks depth of the beacon frame. By using redundancy routing mechanism, the problem of routing loops in Power Line Communication coming with hierarchical forwarding tree, will be solved and the routing will recover through the shortest path. The actual test results show that the redundancy routing mechanism has good performance on transmitting efficiency and fault-resilient, which efficiently improves the timeliness and reliability of power line carrier communication based on IPv6.
{"title":"Redundancy routing mechanism based on hierarchical forwarding tree for IPv6 communication in power line carrier networks","authors":"Xiang Min, Qu Qinqin, Yu Xiangchun, Sun Yongmin","doi":"10.1109/ICEMI.2017.8265952","DOIUrl":"https://doi.org/10.1109/ICEMI.2017.8265952","url":null,"abstract":"For effectively reducing the packet loss rate and time delay when IPv6 is applied to power line communication system, the redundant routing mechanism based on hierarchical forwarding tree is put forward. A redundancy routing mechanism of IPv6 based on hierarchical forwarding tree is designed for power line carrier communication networks. The hierarchical forwarding tree model for power line carrier networks is constructed by designing IPv6 automatic address allocation method. Each node only needs to maintain a few forwarding entries corresponding to the number of child nodes to generate routing information fast in the subnet. The redundancy routing mechanism of backup parent nodes is designed based on the link quality, address space and networks depth of the beacon frame. By using redundancy routing mechanism, the problem of routing loops in Power Line Communication coming with hierarchical forwarding tree, will be solved and the routing will recover through the shortest path. The actual test results show that the redundancy routing mechanism has good performance on transmitting efficiency and fault-resilient, which efficiently improves the timeliness and reliability of power line carrier communication based on IPv6.","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":"117220622","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.2017.8265857
Yu Pei, Xing Hongyan, Ding Yuan
In order to solve the problem of different marine noise signals' classification, a multi-layer neuron networks model, which can be used to learn and analyze different marine noise signals, is built based on DNN (Deep Neural Networks) model in this article. Firstly, let's generate the initialized weight value randomly. Secondly, do linear operation that the input values of each layer multiply the weight values and then add the figures together. Thirdly, function value normalization is achieved by implementing nonlinear sigmoid active function, and we can get error function of actual output and desired output. Fourthly, we can get error coefficient of weight value and minimal value by gradient descent algorithm. In the last, we can get classification weight value which can distinguish different marine noise signals by summing this coefficient and weight value to keep weigh value updated. In the article, a four-layer deep neuron networks is built, of which three layers are hidden. Train the matrix data, test it and the result is that there are four errors among 100 test objects with 94%o accuracy. At the same time, the average accuracy of the 10 test results was 91.7%. It proves that this method can achieve the marine noise signals' classification.
{"title":"Classification of marine noise signals based on DNN (Deep Neural Networks) model","authors":"Yu Pei, Xing Hongyan, Ding Yuan","doi":"10.1109/ICEMI.2017.8265857","DOIUrl":"https://doi.org/10.1109/ICEMI.2017.8265857","url":null,"abstract":"In order to solve the problem of different marine noise signals' classification, a multi-layer neuron networks model, which can be used to learn and analyze different marine noise signals, is built based on DNN (Deep Neural Networks) model in this article. Firstly, let's generate the initialized weight value randomly. Secondly, do linear operation that the input values of each layer multiply the weight values and then add the figures together. Thirdly, function value normalization is achieved by implementing nonlinear sigmoid active function, and we can get error function of actual output and desired output. Fourthly, we can get error coefficient of weight value and minimal value by gradient descent algorithm. In the last, we can get classification weight value which can distinguish different marine noise signals by summing this coefficient and weight value to keep weigh value updated. In the article, a four-layer deep neuron networks is built, of which three layers are hidden. Train the matrix data, test it and the result is that there are four errors among 100 test objects with 94%o accuracy. At the same time, the average accuracy of the 10 test results was 91.7%. It proves that this method can achieve the marine noise signals' classification.","PeriodicalId":275568,"journal":{"name":"2017 13th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"27 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":"133289777","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.2017.8265925
Liu Ke, Su Shixi, Xiao Yindong, Guo Guangkun, Zhao Zhenkai
This paper mainly introduces a design of time marker which based on the DDWS principle. The time marker signals to include square waveform, plus waveform, narrow triangular waveform and liner triangular waveform. The first core task is to generate these waveforms. In order to achieve this, the relationship between storage size and waveform feature was analyzed. An address generator structure was proposed. By this structure, the time marker signal was generated by using FPGA's inner memory resource. Keep the synchronization output signal and time marker signal precise synchronization is the second core task of time marker generator. Firstly, some influence factors of synchronization are analyzed, and some synchronization methods are proved. The test result shows that this time marker generator could output 111MHz square waveform, the highest frequency resolution could lower than 1mHz. The rising time of square waveform is lower than 1ns and the time marker and synchronization output signal are precise synchronization. We also designed the high light mode, which could let the oscilloscope calibration more convenient.
{"title":"The design of time marker generator","authors":"Liu Ke, Su Shixi, Xiao Yindong, Guo Guangkun, Zhao Zhenkai","doi":"10.1109/ICEMI.2017.8265925","DOIUrl":"https://doi.org/10.1109/ICEMI.2017.8265925","url":null,"abstract":"This paper mainly introduces a design of time marker which based on the DDWS principle. The time marker signals to include square waveform, plus waveform, narrow triangular waveform and liner triangular waveform. The first core task is to generate these waveforms. In order to achieve this, the relationship between storage size and waveform feature was analyzed. An address generator structure was proposed. By this structure, the time marker signal was generated by using FPGA's inner memory resource. Keep the synchronization output signal and time marker signal precise synchronization is the second core task of time marker generator. Firstly, some influence factors of synchronization are analyzed, and some synchronization methods are proved. The test result shows that this time marker generator could output 111MHz square waveform, the highest frequency resolution could lower than 1mHz. The rising time of square waveform is lower than 1ns and the time marker and synchronization output signal are precise synchronization. We also designed the high light mode, which could let the oscilloscope calibration more convenient.","PeriodicalId":275568,"journal":{"name":"2017 13th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"16 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133293730","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.2017.8265978
Yuan Yuan, Feng Jianqiang, Jiang Ning, Jia Zhuanzhuan, Li He
The calibration of the impulse current measurement system has been clearly stipulated in the standard GB/T 16927.4-2014, With the implementation of GB/T 16927.4-2014. In order to promote the standardization of the calibration system, this paper analyzes the impulse current measurement system architecture, Analysis of the impulse current measurement system scale factor calibration methods and the uncertainty calculation of time-parameter measurements. Then, each test example was executed. The uncertainty of under calibration impulse current measurement system was evaluation, For the implementation of standard provides the beneficial practice and guidance.
{"title":"Study on calibration of impulse current measuring system","authors":"Yuan Yuan, Feng Jianqiang, Jiang Ning, Jia Zhuanzhuan, Li He","doi":"10.1109/ICEMI.2017.8265978","DOIUrl":"https://doi.org/10.1109/ICEMI.2017.8265978","url":null,"abstract":"The calibration of the impulse current measurement system has been clearly stipulated in the standard GB/T 16927.4-2014, With the implementation of GB/T 16927.4-2014. In order to promote the standardization of the calibration system, this paper analyzes the impulse current measurement system architecture, Analysis of the impulse current measurement system scale factor calibration methods and the uncertainty calculation of time-parameter measurements. Then, each test example was executed. The uncertainty of under calibration impulse current measurement system was evaluation, For the implementation of standard provides the beneficial practice and guidance.","PeriodicalId":275568,"journal":{"name":"2017 13th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"2 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":"131850739","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.2017.8265953
Yu Jinxiang, Peng Yu, Pan Dawei, Wang Benkuan
Flight testing is a necessary procession which gathers information and data from the airplane when flying. The airborne distributed analog data acquisition system is used to collect, store and display the analog data of the airplane in the flight test, which provide data support for further aircraft state estimating, performance test and fault diagnosis. The essence of it is a wild-distributed data acquisition system which gathers large numbers of analog parameters with high time synchronization accuracy Traditional airborne data acquisition system is based on PCM architecture which has advantages in system time synchronization stability, however, as planes become more sophisticated, a large number of parameters with a wild spatial distribution needs to be collected, the routing needs to be more concise as long as the time synchronization accuracy is highly demanded. As a result, the existing PCM architecture may not fully meets the requirements of the latest flight test. In this paper a hierarchical distributed airborne analog data acquisition system is designed and developed. In order to enhance the system expansibility and achieve high bandwidth, an easy-routing distributed architecture which combines Ethernet with the RS-485 bus was proposed. A RS-485 frame based time synchronization is applied to achieve high time synchronization accuracy. It is verifiable that the developed prototype can synchronously collect analog signals under high time synchronization accuracy, which fully meet the requirements of China self-developed large airplane and boost the development of China aviation industry.
{"title":"Development of airborne distributed analog data acquisition system","authors":"Yu Jinxiang, Peng Yu, Pan Dawei, Wang Benkuan","doi":"10.1109/ICEMI.2017.8265953","DOIUrl":"https://doi.org/10.1109/ICEMI.2017.8265953","url":null,"abstract":"Flight testing is a necessary procession which gathers information and data from the airplane when flying. The airborne distributed analog data acquisition system is used to collect, store and display the analog data of the airplane in the flight test, which provide data support for further aircraft state estimating, performance test and fault diagnosis. The essence of it is a wild-distributed data acquisition system which gathers large numbers of analog parameters with high time synchronization accuracy Traditional airborne data acquisition system is based on PCM architecture which has advantages in system time synchronization stability, however, as planes become more sophisticated, a large number of parameters with a wild spatial distribution needs to be collected, the routing needs to be more concise as long as the time synchronization accuracy is highly demanded. As a result, the existing PCM architecture may not fully meets the requirements of the latest flight test. In this paper a hierarchical distributed airborne analog data acquisition system is designed and developed. In order to enhance the system expansibility and achieve high bandwidth, an easy-routing distributed architecture which combines Ethernet with the RS-485 bus was proposed. A RS-485 frame based time synchronization is applied to achieve high time synchronization accuracy. It is verifiable that the developed prototype can synchronously collect analog signals under high time synchronization accuracy, which fully meet the requirements of China self-developed large airplane and boost the development of China aviation industry.","PeriodicalId":275568,"journal":{"name":"2017 13th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"139 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":"132054574","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.2017.8265890
Yang Zhuoqian, Liu Xinang, Yang Yang
Non-rigid point-set registration based image registration is a technology frequently used in image retrieval, stereo matching and the analysis of satellite and medical images. In remote sense image analysis, Harris corner detection is often chosen as an ideal approach of feature extraction. The method we propose utilizes the feature metric produced by Harris corner detection, which is not employed in current methods, and integrate it into the Coherent Point Drift framework to enhance accuracy. We first construct a likelihood descriptor of point-to-point correspondence, then this likelihood value is used as a prior probability term in the Gaussian mixture model. Finally, we use the Expectation Maximization algorithm to iteratively match the points. Our contribution includes finding a way of normalizing the feature metric data and constructing a proper descriptor to incorporate the Harris feature metric and the Euclidean distance which can minimize the negative effects of the deviations in the feature metric values. Experiments are conducted upon remote sense images, compared against four state-of-the-art image registration algorithms, including two non-iterative methods and two iterative methods, where our method show the smallest error rate and the best registered image result.
{"title":"Harris feature and coherent point drift based remote sensing image registration","authors":"Yang Zhuoqian, Liu Xinang, Yang Yang","doi":"10.1109/ICEMI.2017.8265890","DOIUrl":"https://doi.org/10.1109/ICEMI.2017.8265890","url":null,"abstract":"Non-rigid point-set registration based image registration is a technology frequently used in image retrieval, stereo matching and the analysis of satellite and medical images. In remote sense image analysis, Harris corner detection is often chosen as an ideal approach of feature extraction. The method we propose utilizes the feature metric produced by Harris corner detection, which is not employed in current methods, and integrate it into the Coherent Point Drift framework to enhance accuracy. We first construct a likelihood descriptor of point-to-point correspondence, then this likelihood value is used as a prior probability term in the Gaussian mixture model. Finally, we use the Expectation Maximization algorithm to iteratively match the points. Our contribution includes finding a way of normalizing the feature metric data and constructing a proper descriptor to incorporate the Harris feature metric and the Euclidean distance which can minimize the negative effects of the deviations in the feature metric values. Experiments are conducted upon remote sense images, compared against four state-of-the-art image registration algorithms, including two non-iterative methods and two iterative methods, where our method show the smallest error rate and the best registered image result.","PeriodicalId":275568,"journal":{"name":"2017 13th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"16 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":"125597255","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：