Pub Date : 2014-05-05DOI: 10.1109/PLANS.2014.6851430
G. Liou, Shau-Shiun Jan
The existing unusual weather alert system utilizes information provided by ground meteorological observation stations and simulates unusual weather conditions using a specific computational fluid dynamics model. However, the ground meteorological observation stations convey only 2D weather information near the ground, and it is very difficult to accurately simulate 3D low-level weather conditions using only 2D ground weather information. The purpose of the paper is thus to analyzing the possibility of simulating a 3D fluid flow field describing weather conditions using both meteorological observation data from ADS-B/UAT onboard aircrafts and ground meteorological observation stations. All the meteorological information collected for the paper is calculated to conduct 3D fluid flow field by the CALMET/CALPUFF Modeling system.
{"title":"Using on air UAT/ADS-B signal to simulate 3D aviation weather information","authors":"G. Liou, Shau-Shiun Jan","doi":"10.1109/PLANS.2014.6851430","DOIUrl":"https://doi.org/10.1109/PLANS.2014.6851430","url":null,"abstract":"The existing unusual weather alert system utilizes information provided by ground meteorological observation stations and simulates unusual weather conditions using a specific computational fluid dynamics model. However, the ground meteorological observation stations convey only 2D weather information near the ground, and it is very difficult to accurately simulate 3D low-level weather conditions using only 2D ground weather information. The purpose of the paper is thus to analyzing the possibility of simulating a 3D fluid flow field describing weather conditions using both meteorological observation data from ADS-B/UAT onboard aircrafts and ground meteorological observation stations. All the meteorological information collected for the paper is calculated to conduct 3D fluid flow field by the CALMET/CALPUFF Modeling system.","PeriodicalId":371808,"journal":{"name":"2014 IEEE/ION Position, Location and Navigation Symposium - PLANS 2014","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122535439","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}
Collaborative navigation is an emerging network technology by which a group of mobile users, each being a node of an ad hoc wireless network, attempt to improve their navigation performance. Each node in the network has a means of its own for navigation, e.g., using an integrated INS/GPS system. However, individual navigation performance is rather limited due to inertial sensor drifts when GPS signal is lost for instance. By exchanging navigation states and in particular obtaining relative measurements (range, range rate, or angular) via radio communications, the distributed nodes in the network collaborate and serve as reference beacons or anchors to one another. In this paper, we investigate spatial and temporal effects of collaborative navigation on navigation performance improvement. Indeed, the improvement in navigation performance is affected by the number of collaborating nodes and inter-node measurement quality in relation to the uncertainty of individual navigation states (spatial effect). Navigation errors after inter-node measurement exchanges become correlated, which limits further reduction in errors by subsequent measurements (temporal effect). Scenarios with simple measurement models and fusion rules are used to illustrate the spatial and temporal effects of collaborative navigation via covariance analysis and computer simulations. Understanding of such fundamental effects provides practical guidelines for optimal design of communication protocols and estimation algorithms.
{"title":"Covariance analysis of spatial and temporal effects of collaborative navigation","authors":"Chun Yang, A. Soloviev","doi":"10.1002/NAVI.67","DOIUrl":"https://doi.org/10.1002/NAVI.67","url":null,"abstract":"Collaborative navigation is an emerging network technology by which a group of mobile users, each being a node of an ad hoc wireless network, attempt to improve their navigation performance. Each node in the network has a means of its own for navigation, e.g., using an integrated INS/GPS system. However, individual navigation performance is rather limited due to inertial sensor drifts when GPS signal is lost for instance. By exchanging navigation states and in particular obtaining relative measurements (range, range rate, or angular) via radio communications, the distributed nodes in the network collaborate and serve as reference beacons or anchors to one another. In this paper, we investigate spatial and temporal effects of collaborative navigation on navigation performance improvement. Indeed, the improvement in navigation performance is affected by the number of collaborating nodes and inter-node measurement quality in relation to the uncertainty of individual navigation states (spatial effect). Navigation errors after inter-node measurement exchanges become correlated, which limits further reduction in errors by subsequent measurements (temporal effect). Scenarios with simple measurement models and fusion rules are used to illustrate the spatial and temporal effects of collaborative navigation via covariance analysis and computer simulations. Understanding of such fundamental effects provides practical guidelines for optimal design of communication protocols and estimation algorithms.","PeriodicalId":371808,"journal":{"name":"2014 IEEE/ION Position, Location and Navigation Symposium - PLANS 2014","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128611006","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 : 2014-05-05DOI: 10.1109/PLANS.2014.6851376
B. Shin, Seok Lee, Chulki Kim, Jaehun Kim, Taikjin Lee, C. Kee, Sujeong Heo, Heonsoo Rhee
In this paper, we present a motion recognition based pedestrian dead reckoning (PDR) system. The difference of smartphone-based PDR system and inertial measurement unit (IMU)-based PDR is that axes of smartphone sensor are changed dependently by pedestrian motions, but IMU-based PDR does not that. To solve this issue, we firstly detect a performed motion and operate a proper PDR algorithm according to the detected motion. We apply this system to many persons to identify its applicability. Especially, a heading classifier having 45 degree resolution is applied. We performed a real field test and analyzed a performance of this system.
{"title":"Implementation and performance analysis of smartphone-based 3D PDR system with hybrid motion and heading classifier","authors":"B. Shin, Seok Lee, Chulki Kim, Jaehun Kim, Taikjin Lee, C. Kee, Sujeong Heo, Heonsoo Rhee","doi":"10.1109/PLANS.2014.6851376","DOIUrl":"https://doi.org/10.1109/PLANS.2014.6851376","url":null,"abstract":"In this paper, we present a motion recognition based pedestrian dead reckoning (PDR) system. The difference of smartphone-based PDR system and inertial measurement unit (IMU)-based PDR is that axes of smartphone sensor are changed dependently by pedestrian motions, but IMU-based PDR does not that. To solve this issue, we firstly detect a performed motion and operate a proper PDR algorithm according to the detected motion. We apply this system to many persons to identify its applicability. Especially, a heading classifier having 45 degree resolution is applied. We performed a real field test and analyzed a performance of this system.","PeriodicalId":371808,"journal":{"name":"2014 IEEE/ION Position, Location and Navigation Symposium - PLANS 2014","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128857365","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 : 2014-05-05DOI: 10.1109/PLANS.2014.6851488
S. Changey, E. Pecheur, Thomas Brunner
A priori information given by the complete modeling of the ballistic behavior (trajectory, attitude) of a projectile is simplified to give a pertinent reduced evolution model. An Extended Kalman Filter (EKF) is designed to estimate three attitude angles from measurements of the magnetic field of the earth given by a three axis magnetometer sensor embedded on the projectile, completed with a three axis accelerometer. The algorithm has been tested on real data recorded during a free flight test over a distance of 400 meters. The results show that we can estimate milliradians with non-linear equations and approximations, with good accuracy.
{"title":"Experimental Validation1","authors":"S. Changey, E. Pecheur, Thomas Brunner","doi":"10.1109/PLANS.2014.6851488","DOIUrl":"https://doi.org/10.1109/PLANS.2014.6851488","url":null,"abstract":"A priori information given by the complete modeling of the ballistic behavior (trajectory, attitude) of a projectile is simplified to give a pertinent reduced evolution model. An Extended Kalman Filter (EKF) is designed to estimate three attitude angles from measurements of the magnetic field of the earth given by a three axis magnetometer sensor embedded on the projectile, completed with a three axis accelerometer. The algorithm has been tested on real data recorded during a free flight test over a distance of 400 meters. The results show that we can estimate milliradians with non-linear equations and approximations, with good accuracy.","PeriodicalId":371808,"journal":{"name":"2014 IEEE/ION Position, Location and Navigation Symposium - PLANS 2014","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115806677","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 : 2014-05-05DOI: 10.1109/PLANS.2014.6851392
Dingbo Yuan, Hong Li, Mingquan Lu
Nowadays, an increasing number of applications and services are based on the Global Navigation Satellite System (GNSS). GNSS signals are vulnerable to interference, jamming and spoofing. Among them, spoofing attack is extremely deceitful and destructive, because it can result in misleading time and position error. Hence, reliable spoofing detection is of great importance for many critical applications and services. Since PN-code acquisition is the first step of baseband signal processing, successful spoofing detection at this stage is timely, and alarms can be raised as early as possible. Therefore, a new method for spoofing detection at the acquisition stage based on the sequential probability ratio test is proposed in this paper. And performance analysis and evaluation of the proposed method is presented as well. At last, simulation results are provided to demonstrate the effectiveness of the theoretical results.
{"title":"A method for GNSS spoofing detection based on sequential probability ratio test","authors":"Dingbo Yuan, Hong Li, Mingquan Lu","doi":"10.1109/PLANS.2014.6851392","DOIUrl":"https://doi.org/10.1109/PLANS.2014.6851392","url":null,"abstract":"Nowadays, an increasing number of applications and services are based on the Global Navigation Satellite System (GNSS). GNSS signals are vulnerable to interference, jamming and spoofing. Among them, spoofing attack is extremely deceitful and destructive, because it can result in misleading time and position error. Hence, reliable spoofing detection is of great importance for many critical applications and services. Since PN-code acquisition is the first step of baseband signal processing, successful spoofing detection at this stage is timely, and alarms can be raised as early as possible. Therefore, a new method for spoofing detection at the acquisition stage based on the sequential probability ratio test is proposed in this paper. And performance analysis and evaluation of the proposed method is presented as well. At last, simulation results are provided to demonstrate the effectiveness of the theoretical results.","PeriodicalId":371808,"journal":{"name":"2014 IEEE/ION Position, Location and Navigation Symposium - PLANS 2014","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115310004","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 : 2014-05-05DOI: 10.1109/PLANS.2014.6851431
Omar A. Yeste Ojeda, R. Landry
This work describes the methodology used for the development of an avionics system, specifically the distance measuring equipment (DME), from the simulation phase to its implementation in a low cost embedded real time system. The approach considered is based on software defined radio (SDR), that is, all the main functions and signal processing are carried out by an embedded central processing unit (CPU). The purpose of this paper is to show the challenges, such as compatible designing, and advantages of the SDR approach to avionic systems. The laboratory test results show the feasibility of the low cost prototype attaining distance measuring accuracies better than 20 m. Basic minimum operational performance standards are met, while full compliance must be still assessed in order to obtain authorization for the next phase of the project, that is flight testing.
{"title":"Software defined radio approach to distance measuring equipment","authors":"Omar A. Yeste Ojeda, R. Landry","doi":"10.1109/PLANS.2014.6851431","DOIUrl":"https://doi.org/10.1109/PLANS.2014.6851431","url":null,"abstract":"This work describes the methodology used for the development of an avionics system, specifically the distance measuring equipment (DME), from the simulation phase to its implementation in a low cost embedded real time system. The approach considered is based on software defined radio (SDR), that is, all the main functions and signal processing are carried out by an embedded central processing unit (CPU). The purpose of this paper is to show the challenges, such as compatible designing, and advantages of the SDR approach to avionic systems. The laboratory test results show the feasibility of the low cost prototype attaining distance measuring accuracies better than 20 m. Basic minimum operational performance standards are met, while full compliance must be still assessed in order to obtain authorization for the next phase of the project, that is flight testing.","PeriodicalId":371808,"journal":{"name":"2014 IEEE/ION Position, Location and Navigation Symposium - PLANS 2014","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127561294","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 : 2014-05-05DOI: 10.1109/PLANS.2014.6851363
Jingbin Liu, Yuwei Chen, A. Jaakkola, T. Hakala, J. Hyyppa, Liang Chen, Ruizhi Chen, Jian Tang, H. Hyyppa
This paper proposed ambient light (ambilight) as a new type of signal sources for positioning. The possibility and methods of ambilight positioning were presented in this paper. It has been shown that two kinds of observables of ambient light can be used for positioning through different principles. Ambilight intensity spectrum measurements have highly location dependency, and they can be used for positioning with the traditional fingerprinting approach. Total ambilight irradiance intensity is used to detect the proximity of a lighting source, and a location solution can be further resolved with the support of knowledge of lighting infrastructure. Ambilight positioning can work in areas where other traditional techniques are not able to function. An ambilight sensor is cost-efficient and miniature in size, and it can be easily integrated with other sensors to form a hybrid positioning system. This paper was concluded with discussions on the possibility, applicability, challenges and outlook of the new ambient light positioning techniques.
{"title":"The uses of ambient light for ubiquitous positioning","authors":"Jingbin Liu, Yuwei Chen, A. Jaakkola, T. Hakala, J. Hyyppa, Liang Chen, Ruizhi Chen, Jian Tang, H. Hyyppa","doi":"10.1109/PLANS.2014.6851363","DOIUrl":"https://doi.org/10.1109/PLANS.2014.6851363","url":null,"abstract":"This paper proposed ambient light (ambilight) as a new type of signal sources for positioning. The possibility and methods of ambilight positioning were presented in this paper. It has been shown that two kinds of observables of ambient light can be used for positioning through different principles. Ambilight intensity spectrum measurements have highly location dependency, and they can be used for positioning with the traditional fingerprinting approach. Total ambilight irradiance intensity is used to detect the proximity of a lighting source, and a location solution can be further resolved with the support of knowledge of lighting infrastructure. Ambilight positioning can work in areas where other traditional techniques are not able to function. An ambilight sensor is cost-efficient and miniature in size, and it can be easily integrated with other sensors to form a hybrid positioning system. This paper was concluded with discussions on the possibility, applicability, challenges and outlook of the new ambient light positioning techniques.","PeriodicalId":371808,"journal":{"name":"2014 IEEE/ION Position, Location and Navigation Symposium - PLANS 2014","volume":"184 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122301893","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 : 2014-05-05DOI: 10.1109/PLANS.2014.6851487
Fu Li, Luo Han
The vertical take-off and landing (VTOL) Rotorcraft Micro Aerial Vehicles (RMAVs) are playing more and more important roles in military and civil applications since they can significantly reduce the risk to human life and minimize economic damage. Many RMAVs working together as a swarm can solve the problem of limits in payload, vision range and data processing ability. They are of great development for completing complex missions in some serious emergency situations. These problems of autonomous control, navigation and collision avoidance are critical to the successful deployment of RMAVs swarm. A type of small size autopilot system comprising dual DSP microprocessor, Inertial Measurement Unit (IMU), ultrasonic rangefinders, digital camera, and Wi-Fi module that can easily installed in RMAV has been designed. A RMAVs Swarm Test Platform significantly safe and efficient is established.
{"title":"Autopilot design for control of Rotorcraft Micro Aerial Vehicles (RMAVs) swarm","authors":"Fu Li, Luo Han","doi":"10.1109/PLANS.2014.6851487","DOIUrl":"https://doi.org/10.1109/PLANS.2014.6851487","url":null,"abstract":"The vertical take-off and landing (VTOL) Rotorcraft Micro Aerial Vehicles (RMAVs) are playing more and more important roles in military and civil applications since they can significantly reduce the risk to human life and minimize economic damage. Many RMAVs working together as a swarm can solve the problem of limits in payload, vision range and data processing ability. They are of great development for completing complex missions in some serious emergency situations. These problems of autonomous control, navigation and collision avoidance are critical to the successful deployment of RMAVs swarm. A type of small size autopilot system comprising dual DSP microprocessor, Inertial Measurement Unit (IMU), ultrasonic rangefinders, digital camera, and Wi-Fi module that can easily installed in RMAV has been designed. A RMAVs Swarm Test Platform significantly safe and efficient is established.","PeriodicalId":371808,"journal":{"name":"2014 IEEE/ION Position, Location and Navigation Symposium - PLANS 2014","volume":"104 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120882562","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 : 2014-05-05DOI: 10.1109/PLANS.2014.6851412
A. Pizzarulli, R. Senatore, E. Quatraro, M. Perlmutter
It is a very difficult task to select the proper sensor performances for each applications in order to meet cost-effectiveness criteria. The purpose of this paper is to provide a comprehensive guide based on analytic criteria such as Allan variance analysis in order to highlight what are the performance requirements for several kind of inertial sensors based applications. Several types of sensor (gyroscopes and accelerometers) technologies (MEMS, FOG, CVG, QUARTZ) have been evaluated from different vendors. A comparative analysis of the meaningful parameters such as ARW, bias stability, etc. was performed, providing guidelines on how such sensor parameters relate to the various application performance requirements.
{"title":"Selecting the optimum inertial sensor for each specific application — A comprehensive guide based on analytic criteria and experimental data across several sensors and technologies","authors":"A. Pizzarulli, R. Senatore, E. Quatraro, M. Perlmutter","doi":"10.1109/PLANS.2014.6851412","DOIUrl":"https://doi.org/10.1109/PLANS.2014.6851412","url":null,"abstract":"It is a very difficult task to select the proper sensor performances for each applications in order to meet cost-effectiveness criteria. The purpose of this paper is to provide a comprehensive guide based on analytic criteria such as Allan variance analysis in order to highlight what are the performance requirements for several kind of inertial sensors based applications. Several types of sensor (gyroscopes and accelerometers) technologies (MEMS, FOG, CVG, QUARTZ) have been evaluated from different vendors. A comparative analysis of the meaningful parameters such as ARW, bias stability, etc. was performed, providing guidelines on how such sensor parameters relate to the various application performance requirements.","PeriodicalId":371808,"journal":{"name":"2014 IEEE/ION Position, Location and Navigation Symposium - PLANS 2014","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125727787","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 : 2014-05-05DOI: 10.1109/PLANS.2014.6851450
M. Jonas
Increasing progress in the field of the satellite navigation systems (GNSS, SBAS) in recent decades supports the effort to use it for the determination of train position for the railway safety-related systems. Satellite-based augmentation systems (SBAS) such as WAAS in the USA, and EGNOS in Europe, are available and new global satellite navigation system Galileo is being built in Europe. Currently available SBAS systems were developed in order to satisfy the aviation requirements, but the safety concept on the railways is very different from the aviation safety concept. New method for increasing integrity of GNSS position solution at the earth ground is described. Properties of this method are experimentally examined by simulations of errors in pseudoranges.
{"title":"Integrity enhancement of the GNSS position solution for the railway applications","authors":"M. Jonas","doi":"10.1109/PLANS.2014.6851450","DOIUrl":"https://doi.org/10.1109/PLANS.2014.6851450","url":null,"abstract":"Increasing progress in the field of the satellite navigation systems (GNSS, SBAS) in recent decades supports the effort to use it for the determination of train position for the railway safety-related systems. Satellite-based augmentation systems (SBAS) such as WAAS in the USA, and EGNOS in Europe, are available and new global satellite navigation system Galileo is being built in Europe. Currently available SBAS systems were developed in order to satisfy the aviation requirements, but the safety concept on the railways is very different from the aviation safety concept. New method for increasing integrity of GNSS position solution at the earth ground is described. Properties of this method are experimentally examined by simulations of errors in pseudoranges.","PeriodicalId":371808,"journal":{"name":"2014 IEEE/ION Position, Location and Navigation Symposium - PLANS 2014","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130944157","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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