Pub Date : 2016-05-10DOI: 10.1109/IRS.2016.7497268
B. Willetts, M. Gashinova, A. Stove, C. Constantinou, E. Hoare, E. Marchetti
The measurements presented in this paper show that feature extraction can be used to identify objects of interest by making use of the scattering present and angular resolution available when using low TeraHertz (low-THz) (0.1 THz-1 THz) devices. The results shown were obtained by measuring two different types of overhead power cables of similar size but with different surface structure which causes the backscatter from each type of cable at 150GHz to be distinct. The measurements are supported by simulations made that incorporate Bragg mode theory.
{"title":"Low-THz overhead power cable signatures: The effect of surface features on Low-THz reflectivities","authors":"B. Willetts, M. Gashinova, A. Stove, C. Constantinou, E. Hoare, E. Marchetti","doi":"10.1109/IRS.2016.7497268","DOIUrl":"https://doi.org/10.1109/IRS.2016.7497268","url":null,"abstract":"The measurements presented in this paper show that feature extraction can be used to identify objects of interest by making use of the scattering present and angular resolution available when using low TeraHertz (low-THz) (0.1 THz-1 THz) devices. The results shown were obtained by measuring two different types of overhead power cables of similar size but with different surface structure which causes the backscatter from each type of cable at 150GHz to be distinct. The measurements are supported by simulations made that incorporate Bragg mode theory.","PeriodicalId":346680,"journal":{"name":"2016 17th International Radar Symposium (IRS)","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132310176","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 : 2016-05-10DOI: 10.1109/IRS.2016.7497312
Gor Hakobyan, Bin Yang
A novel concept of orthogonal frequency division multiplexing (OFDM) multiple input multiple output (MIMO) radar for automotive applications is presented in this paper. Multiple transmit antennas are multiplexed via OFDM subcarrier interleaving. Such a multiplexing enables a simultaneous operation of transmit antennas, while the complete bandwidth is utilized by each of them. Whereas the known OFDM-MIMO radar concepts perform multiplexing via equidistant subcarrier interleaving, we propose the use of non-equidistant subcarrier interleaving for multiplexing of transmit antennas. The advantage of this approach over the equidistant interleaving is the full unambiguously measurable distance range, not reduced through the subcarrier interleaving. To cope with the increased sidelobes in distance estimation due to the non-equidistant subcarrier interleaving, we propose a novel two-dimensional distance-velocity estimation algorithm based on compressed sensing that incorporates the radar images from all antennas. The proposed algorithm is able to detect weak targets, originally masked by the sidelobes of more dominant ones.
{"title":"A novel OFDM-MIMO radar with non-equidistant subcarrier interleaving and compressed sensing","authors":"Gor Hakobyan, Bin Yang","doi":"10.1109/IRS.2016.7497312","DOIUrl":"https://doi.org/10.1109/IRS.2016.7497312","url":null,"abstract":"A novel concept of orthogonal frequency division multiplexing (OFDM) multiple input multiple output (MIMO) radar for automotive applications is presented in this paper. Multiple transmit antennas are multiplexed via OFDM subcarrier interleaving. Such a multiplexing enables a simultaneous operation of transmit antennas, while the complete bandwidth is utilized by each of them. Whereas the known OFDM-MIMO radar concepts perform multiplexing via equidistant subcarrier interleaving, we propose the use of non-equidistant subcarrier interleaving for multiplexing of transmit antennas. The advantage of this approach over the equidistant interleaving is the full unambiguously measurable distance range, not reduced through the subcarrier interleaving. To cope with the increased sidelobes in distance estimation due to the non-equidistant subcarrier interleaving, we propose a novel two-dimensional distance-velocity estimation algorithm based on compressed sensing that incorporates the radar images from all antennas. The proposed algorithm is able to detect weak targets, originally masked by the sidelobes of more dominant ones.","PeriodicalId":346680,"journal":{"name":"2016 17th International Radar Symposium (IRS)","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132320236","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 : 2016-05-10DOI: 10.1109/IRS.2016.7497273
A. K. Keskin, Mehmet Akif Tulum, A. S. Turk
In this paper, a quasi-horn antenna array, which is combination of 4 × 4 slot array and its flares, is designed for Ku band monopulse radiation. The slots are fed by waveguide power divider. In order to obtain sum and difference radiation pattern, a magic T is utilized end of the waveguide feeder. Slot dimensions and distance between each slot are adjusted and optimized to get high gain and low return loss using 3D EM simulation. Short depth flares are added to aperture of each 4 × 1 slots to enhance gain of the array. According to the simulation results, gain of the array at the sum port is 21.9 dBi. At the difference port, monopulse radiation pattern have 19.3 dBi maximum gain and -32 dB null. Return losses at the sum and difference port are lower than -6 dB in the operation band. Total dimensions of the 4 × 4 array are 8.36 cm × 8.4 cm × 7.06 cm.
本文设计了一种用于Ku波段单脉冲辐射的4 × 4槽阵及其耀斑组合的准喇叭天线阵列。这些槽由波导功率分配器馈电。在波导馈线的端部使用了一个神奇的T来获得和差分辐射方向图。通过三维电磁仿真，调整和优化了槽的尺寸和各槽之间的距离，以获得高增益和低回波损耗。在每个4 × 1槽的孔径上增加了短深度耀斑，以提高阵列的增益。仿真结果表明，该阵列在sum口的增益为21.9 dBi。在差分端口，单脉冲辐射方向图的最大增益为19.3 dBi，零值为-32 dB。和差端口的回波损耗在工作频带内低于- 6db。4 × 4阵列总尺寸为8.36 cm × 8.4 cm × 7.06 cm。
{"title":"Quasi horn antenna array for Ku band monopulse radiation","authors":"A. K. Keskin, Mehmet Akif Tulum, A. S. Turk","doi":"10.1109/IRS.2016.7497273","DOIUrl":"https://doi.org/10.1109/IRS.2016.7497273","url":null,"abstract":"In this paper, a quasi-horn antenna array, which is combination of 4 × 4 slot array and its flares, is designed for Ku band monopulse radiation. The slots are fed by waveguide power divider. In order to obtain sum and difference radiation pattern, a magic T is utilized end of the waveguide feeder. Slot dimensions and distance between each slot are adjusted and optimized to get high gain and low return loss using 3D EM simulation. Short depth flares are added to aperture of each 4 × 1 slots to enhance gain of the array. According to the simulation results, gain of the array at the sum port is 21.9 dBi. At the difference port, monopulse radiation pattern have 19.3 dBi maximum gain and -32 dB null. Return losses at the sum and difference port are lower than -6 dB in the operation band. Total dimensions of the 4 × 4 array are 8.36 cm × 8.4 cm × 7.06 cm.","PeriodicalId":346680,"journal":{"name":"2016 17th International Radar Symposium (IRS)","volume":"44 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132537540","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 : 2016-05-10DOI: 10.1109/IRS.2016.7497361
Osman Karabayır, S. M. Yucedag, O. M. Yucedag, A. Coşkun, Huseyin Avni Serim
In this study, micro-Doppler-based aerial target classification is examined together with the consideration of wind turbine clutter (WTC). In the examinations, wavelet coefficients extracted from micro-Doppler profiles are employed as classifier features for the airliner-, glider- and helicopter-type aerial targets and also for the examined wind turbine (WT) model. In order to simulate the targets' scatterings more accurately, their computer-aided design (CAD) models are considered. Moreover, scattering characteristics of the targets are taken into account for a variety of radar aspects and propeller or blade rotation speeds. Through the simulation results obtained by employing Bayesian and probabilistic neural network (PNN) classifiers, classification performance of a typical air traffic control (ATC) radar system is exhibited. Additionally, the results present the recognisability of WTC on ATC systems via the classification procedure.
{"title":"Micro-Doppler-based classification study on the detections of aerial targets and wind turbines","authors":"Osman Karabayır, S. M. Yucedag, O. M. Yucedag, A. Coşkun, Huseyin Avni Serim","doi":"10.1109/IRS.2016.7497361","DOIUrl":"https://doi.org/10.1109/IRS.2016.7497361","url":null,"abstract":"In this study, micro-Doppler-based aerial target classification is examined together with the consideration of wind turbine clutter (WTC). In the examinations, wavelet coefficients extracted from micro-Doppler profiles are employed as classifier features for the airliner-, glider- and helicopter-type aerial targets and also for the examined wind turbine (WT) model. In order to simulate the targets' scatterings more accurately, their computer-aided design (CAD) models are considered. Moreover, scattering characteristics of the targets are taken into account for a variety of radar aspects and propeller or blade rotation speeds. Through the simulation results obtained by employing Bayesian and probabilistic neural network (PNN) classifiers, classification performance of a typical air traffic control (ATC) radar system is exhibited. Additionally, the results present the recognisability of WTC on ATC systems via the classification procedure.","PeriodicalId":346680,"journal":{"name":"2016 17th International Radar Symposium (IRS)","volume":"48 14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115571401","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 : 2016-05-10DOI: 10.1109/IRS.2016.7497386
A. Stateczny
Marine Technology Ltd. developed in 2015 functional-utility program of full implementation of River Information Services (RIS) of border and lower section of the Oder in Poland. The full implementation of the RIS is designed to introduce River Information Services in a wider area compared with the pilot implementation and to develop the scope of provided services. The works are to be based on the base of technologies checked in the pilot implementation, including conclusions which will allow in particular to increase the ergonomics of the system. The provision of information services that will make it possible to increase safety on inland waterways and will significantly increase the level of access and harmonization of navigation information. In the article aspects of microwave sensors - radar water level sensors implementation are described.
{"title":"Radar water level sensors for full implementation of the river information services of border and lower section of the Oder in Poland","authors":"A. Stateczny","doi":"10.1109/IRS.2016.7497386","DOIUrl":"https://doi.org/10.1109/IRS.2016.7497386","url":null,"abstract":"Marine Technology Ltd. developed in 2015 functional-utility program of full implementation of River Information Services (RIS) of border and lower section of the Oder in Poland. The full implementation of the RIS is designed to introduce River Information Services in a wider area compared with the pilot implementation and to develop the scope of provided services. The works are to be based on the base of technologies checked in the pilot implementation, including conclusions which will allow in particular to increase the ergonomics of the system. The provision of information services that will make it possible to increase safety on inland waterways and will significantly increase the level of access and harmonization of navigation information. In the article aspects of microwave sensors - radar water level sensors implementation are described.","PeriodicalId":346680,"journal":{"name":"2016 17th International Radar Symposium (IRS)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125764657","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 : 2016-05-10DOI: 10.1109/IRS.2016.7497293
Pan Qiu, Zhan Wang, Shuangxun Li, P. Cheng
There are high range sidelobes for Pseudo-random Code Phase Modulation Continuous Wave (PRC-CW) radar due to the characteristics of the code waveform. In order to suppress the range sidelobes and improve the detection performance, we present a method on the basis of Gold sequence. Given a bunch of Gold coded waveforms, a randomly selected waveform is transmitted. The receiver has the knowledge of the randomly chosen waveform matching with the received signals. After matching filter, received signals at multiple adjacent transmitters are accumulated. The range mainlobes can be accumulated effectively while the range sidelobes can't be accumulated. Therefore the main-sidelobe ratio is improved obviously after accumulation. At last, the simulation validated this result.
{"title":"Range sidelobe suppression based on Gold sequence","authors":"Pan Qiu, Zhan Wang, Shuangxun Li, P. Cheng","doi":"10.1109/IRS.2016.7497293","DOIUrl":"https://doi.org/10.1109/IRS.2016.7497293","url":null,"abstract":"There are high range sidelobes for Pseudo-random Code Phase Modulation Continuous Wave (PRC-CW) radar due to the characteristics of the code waveform. In order to suppress the range sidelobes and improve the detection performance, we present a method on the basis of Gold sequence. Given a bunch of Gold coded waveforms, a randomly selected waveform is transmitted. The receiver has the knowledge of the randomly chosen waveform matching with the received signals. After matching filter, received signals at multiple adjacent transmitters are accumulated. The range mainlobes can be accumulated effectively while the range sidelobes can't be accumulated. Therefore the main-sidelobe ratio is improved obviously after accumulation. At last, the simulation validated this result.","PeriodicalId":346680,"journal":{"name":"2016 17th International Radar Symposium (IRS)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127343632","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 : 2016-05-10DOI: 10.1109/IRS.2016.7497348
D. Nagel, C. Neumann
Due to the growing number of wind farms, one of the most important tasks for ground based radars is the suppression of windmill returns which might cause spurious target detections [5]. The detection of targets in the presence of strong rain clutter would also be desirable. The usual waveform for ground based radars is LPRF (low pulse repetition frequency) with PRFs below ~1000Hz, resulting in unambiguous range measurements exceeding 150km. This waveform has many advantages for ground based radars, even with regard to clutter and small targets from near-in ground area around the radar. However, with growing signal processing capabilities, modern radars can now be extended from 3D-operation (range-azimuth-elevation) to 4D-operation (range - azimuth - elevation - Doppler). The parameters of the fourth dimension can be measured by interleaving MPRF (medium pulse repetition frequency) waveforms with the standard LPRF waveform. When targets need to be tracked through windmill areas or rain clutter, the regions concerned can be detected by an LPRF waveform. If it is predictable that one or more targets will traverse windmill or rain clutter areas, the waveform can be switched to MPRF, where targets can easier be detected in such environments.
{"title":"Tracking airborne targets through windmill areas and rain clutter with ground based radar","authors":"D. Nagel, C. Neumann","doi":"10.1109/IRS.2016.7497348","DOIUrl":"https://doi.org/10.1109/IRS.2016.7497348","url":null,"abstract":"Due to the growing number of wind farms, one of the most important tasks for ground based radars is the suppression of windmill returns which might cause spurious target detections [5]. The detection of targets in the presence of strong rain clutter would also be desirable. The usual waveform for ground based radars is LPRF (low pulse repetition frequency) with PRFs below ~1000Hz, resulting in unambiguous range measurements exceeding 150km. This waveform has many advantages for ground based radars, even with regard to clutter and small targets from near-in ground area around the radar. However, with growing signal processing capabilities, modern radars can now be extended from 3D-operation (range-azimuth-elevation) to 4D-operation (range - azimuth - elevation - Doppler). The parameters of the fourth dimension can be measured by interleaving MPRF (medium pulse repetition frequency) waveforms with the standard LPRF waveform. When targets need to be tracked through windmill areas or rain clutter, the regions concerned can be detected by an LPRF waveform. If it is predictable that one or more targets will traverse windmill or rain clutter areas, the waveform can be switched to MPRF, where targets can easier be detected in such environments.","PeriodicalId":346680,"journal":{"name":"2016 17th International Radar Symposium (IRS)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127517513","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 : 2016-05-10DOI: 10.1109/IRS.2016.7497283
E. Hyun, Jong-hun Lee
In this paper, a multiple target tracking scheme for automotive radars is presented. First, a track table for efficient track management is proposed; then, a track management function is designed using a state machine. The proposed scheme can initiate, confirm, and delete all tracks of multiple targets. Moreover, it can determine whether the detected target is a real target or a ghost track, and a terminated track or a sudden missing track. The simulation results demonstrate that the proposed tracking scheme is processed normally.
{"title":"Multi-target tracking scheme using a track management table for automotive radar systems","authors":"E. Hyun, Jong-hun Lee","doi":"10.1109/IRS.2016.7497283","DOIUrl":"https://doi.org/10.1109/IRS.2016.7497283","url":null,"abstract":"In this paper, a multiple target tracking scheme for automotive radars is presented. First, a track table for efficient track management is proposed; then, a track management function is designed using a state machine. The proposed scheme can initiate, confirm, and delete all tracks of multiple targets. Moreover, it can determine whether the detected target is a real target or a ghost track, and a terminated track or a sudden missing track. The simulation results demonstrate that the proposed tracking scheme is processed normally.","PeriodicalId":346680,"journal":{"name":"2016 17th International Radar Symposium (IRS)","volume":"66 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131673733","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 : 2016-05-10DOI: 10.1109/IRS.2016.7497345
Adam Szullo, R. Seller
The Radar Research Group of the Budapest University of Technology and Economics has been developing a distributed passive radar system. Multilateration principle is used to locate aircraft in the zone defined by the location of the receivers. The measurement principle challenges the conventional tracking algorithms, therefore a new solution was developed.
{"title":"Maneuvering target tracking in wide area multilateration radar system","authors":"Adam Szullo, R. Seller","doi":"10.1109/IRS.2016.7497345","DOIUrl":"https://doi.org/10.1109/IRS.2016.7497345","url":null,"abstract":"The Radar Research Group of the Budapest University of Technology and Economics has been developing a distributed passive radar system. Multilateration principle is used to locate aircraft in the zone defined by the location of the receivers. The measurement principle challenges the conventional tracking algorithms, therefore a new solution was developed.","PeriodicalId":346680,"journal":{"name":"2016 17th International Radar Symposium (IRS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129285452","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 : 2016-05-10DOI: 10.1109/IRS.2016.7497299
Dejan Nikolio, Zdravko Popovic, Milos Borenovio, Nikola Stojkovio, V. Orlic, A. Dzvonkovskaya, B. Todorović
The aim of this paper is to propose, develop and test multi-radar multi-target tracking algorithm for maritime surveillance at over-the-horizon (OTH) distances. The proposed algorithm utilizes a weighted pure minimum mean square error (MMSE) algorithm for multi-radar data fusion and adaptive alpha - beta tracking algorithm for target tracking. The developed data fusion algorithm calculates the weighted center of mass of all targets observed by OTH radars (OTHRs) within a gate radius of predicted position, and uses it for a track update process. During the process a weighting factor which will be used in an adaptive alpha-beta tracking algorithm is derived. The weighting factor as well as alpha and beta factors are updated in each observation period and depend on all targets, which have fallen into a gate radius during the track update process. The algorithm is designed, implemented, and tested in an environment consisting of a simulated network of two OTHRs with significantly overlapping surveillance areas.
{"title":"Multi-radar multi-target tracking algorithm for maritime surveillance at OTH distances","authors":"Dejan Nikolio, Zdravko Popovic, Milos Borenovio, Nikola Stojkovio, V. Orlic, A. Dzvonkovskaya, B. Todorović","doi":"10.1109/IRS.2016.7497299","DOIUrl":"https://doi.org/10.1109/IRS.2016.7497299","url":null,"abstract":"The aim of this paper is to propose, develop and test multi-radar multi-target tracking algorithm for maritime surveillance at over-the-horizon (OTH) distances. The proposed algorithm utilizes a weighted pure minimum mean square error (MMSE) algorithm for multi-radar data fusion and adaptive alpha - beta tracking algorithm for target tracking. The developed data fusion algorithm calculates the weighted center of mass of all targets observed by OTH radars (OTHRs) within a gate radius of predicted position, and uses it for a track update process. During the process a weighting factor which will be used in an adaptive alpha-beta tracking algorithm is derived. The weighting factor as well as alpha and beta factors are updated in each observation period and depend on all targets, which have fallen into a gate radius during the track update process. The algorithm is designed, implemented, and tested in an environment consisting of a simulated network of two OTHRs with significantly overlapping surveillance areas.","PeriodicalId":346680,"journal":{"name":"2016 17th International Radar Symposium (IRS)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126311103","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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