The Experts below are selected from a list of 75177 Experts worldwide ranked by ideXlab platform
C. M. Johnston - One of the best experts on this subject based on the ideXlab platform.
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A real-time traffic Simulation System
IEEE Transactions on Vehicular Technology, 1998Co-Authors: Anthony T. Chronopoulos, C. M. JohnstonAbstract:This article studies the usefulness of parallel processing in real-time traffic-flow Simulation based on continuum modeling of traffic dynamics. Computational fluid dynamics (CFDs) methods for solving simple macroscopic traffic-flow continuum models have been studied and efficiently implemented in traffic Simulation codes (on serial computers) in the past. We designed a traffic-flow Simulation code and mapped it onto a parallel computer architecture. This traffic Simulation System is capable of simulating freeway traffic flow in real time. Tests with real traffic data collected from the freeway network in the metropolitan area of Minneapolis, MN, were used to validate the accuracy and computational rate of the parallel Simulation System. The execution time for a 2-h traffic-flow Simulation of about 200 619 vehicles in an 18-mi freeway, which takes 2.35 min of computer time (on a single-processor computer simulator), took only 5.25 s on the parallel traffic Simulation System. This parallel System has a lot of potential for real-time traffic engineering applications
Anthony T. Chronopoulos - One of the best experts on this subject based on the ideXlab platform.
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A real-time traffic Simulation System
IEEE Transactions on Vehicular Technology, 1998Co-Authors: Anthony T. Chronopoulos, C. M. JohnstonAbstract:This article studies the usefulness of parallel processing in real-time traffic-flow Simulation based on continuum modeling of traffic dynamics. Computational fluid dynamics (CFDs) methods for solving simple macroscopic traffic-flow continuum models have been studied and efficiently implemented in traffic Simulation codes (on serial computers) in the past. We designed a traffic-flow Simulation code and mapped it onto a parallel computer architecture. This traffic Simulation System is capable of simulating freeway traffic flow in real time. Tests with real traffic data collected from the freeway network in the metropolitan area of Minneapolis, MN, were used to validate the accuracy and computational rate of the parallel Simulation System. The execution time for a 2-h traffic-flow Simulation of about 200 619 vehicles in an 18-mi freeway, which takes 2.35 min of computer time (on a single-processor computer simulator), took only 5.25 s on the parallel traffic Simulation System. This parallel System has a lot of potential for real-time traffic engineering applications
Chen Hong-lin - One of the best experts on this subject based on the ideXlab platform.
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Design of Inertial Navigation Simulation System
2020Co-Authors: Chen Hong-linAbstract:An inertial navigation Simulation System which uses 1553B buses, 429 buses and Ethernet network is designed. It is introduced the content and function of the Simulation System, and it is also presented the methods of the software and of the hardware. The test in avionics Simulation System proves that the design of inertial navigation Simulation System is feasible.
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Design of Radar Simulation System
Science Technology and Engineering, 2020Co-Authors: Chen Hong-linAbstract:An radar Simulation System which uses 1553B buses and Ethernet network is designed.The function of the System is introduced, and the realizing methods of the hardware and of the software are given. The test in avionics Simulation proves that the design of radar Simulation System is feasible.
Kaili Wang - One of the best experts on this subject based on the ideXlab platform.
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An Incoherent Scatter Radar Simulation System Based on MATLAB
IEEE Geoscience and Remote Sensing Letters, 1Co-Authors: Dongran Yu, Kai Yuan, Xiaohua Deng, Kaili WangAbstract:An incoherent scatter radar (ISR) Simulation System based on matrix laboratory (MATLAB) platform was introduced in this letter. The Simulation System adopts a modular design concept and establishes a complete working link for ISRs according to the real ISRs principle of operation. Every ISR working stage that could have an effect on the ionosphere detection performance is simulated, such as signal transmission, ionosphere model, ISR spectrum, signal reception, and ionosphere parameters' extraction. The Simulation platform can be used to perform incoherent scatter spectrum modeling and ionosphere parameters' extraction in various modes. In particular, the target ionosphere is modeled with the International Reference Ionosphere (IRI) model. An example is demonstrated in this letter, which shows that the Simulation System could be helpful for the early design of an ISR and for designing the operation modes for ISRs. Furthermore, the Simulation System has the potential to be optimized and upgraded to improve its efficiency and accuracy.
Yang Jian-hua - One of the best experts on this subject based on the ideXlab platform.
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Design of Radar Countermeasure Simulation System Based on BOM
Command Control & Simulation, 2020Co-Authors: Yang Jian-huaAbstract:Radar countermeasure Simulation System, featured with various Simulation units and complicated interaction, is usually faced with some difficulties in distributed Simulation System development, such as inflexible modification of federate, the lack of regulations for model development and the low capability of model reuse. To overcome the difficulties, according to BOM development standard, a framework in hierarchy of radar countermeasure Simulation System is constructed, and the component method for designing the basic model and the combination method for designing complex models are proposed, which have effectively improved the efficiency of System realization and the capability of model reuse. This method is not only applicable to the design of radar countermeasure function Simulation System, but also to the design of signal Simulation System.