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AI, Simulation, and Planning in High Autonomy Systems, 1994. Distributed Interactive Simulation Environments., Proceedings of the Fifth Annual Conference on

Date 7-9 Dec. 1994

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Displaying Results 1 - 25 of 43
  • Integration of GGF with fielded equipment using DIS

    Publication Year: 1994, Page(s):262 - 268
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (611 KB)

    A unique application of a computer generated force (CGF) was conducted, in December of 1993 at the Depth and Simultaneous Attack Battle Lab. in Ft. Sill, Oklahoma. The CGF simulated a fire support scenario with tanks, infantry fighting vehicles, artillery units, counter-battery radars, and associated command and control elements. A tactical situation display showed the locations of all combatants,... View full abstract»

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  • Computing RF propagation for use in simulation, modeling, and analysis

    Publication Year: 1994, Page(s):257 - 260
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (422 KB)

    The Radio Frequency Mission Planner (RFMP) provides analysis and simulation of communication links based on RF propagation models to more accurately assess performance and capability of transmitters and receivers for command and control warfare (C2W) missions. RFMP processing is dependent on equipment parameters, environmental factors, topography, and force structure. Two and three dimensional dis... View full abstract»

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  • Performance modelling and analysis of distributed access network system using DEVSim++

    Publication Year: 1994, Page(s):235 - 241
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (541 KB)

    DEVSim++ is a C++ based, object-oriented modeling/simulation environment which realizes the hierarchical, modular DEVS formalism for discrete event systems specification. This paper describes a methodology for performance modeling and analysis of a distributed access network system under development within the DEVSim++ environment. The methodology develops performance models for the system using t... View full abstract»

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  • Generation, control, and simulation of task level actions based on discrete event models

    Publication Year: 1994, Page(s):214 - 220
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (474 KB)

    A model based method for task level command generation is used to simulate a pipeline process. Using a discrete event systems formalism, a method for describing manufacturing systems is reviewed prior to constructing the sequential assembly line simulation. This precedes a study of the entire assembly line model, its coordination, and performance metrics. An example system is then simulated and an... View full abstract»

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  • Interface-oriented classification of DEVS models

    Publication Year: 1994, Page(s):208 - 213
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (535 KB)

    Model classification is a way to structure and handle knowledge about systems. Using the models external message interface as the classification criterion lays emphasis on the fact that atomic and coupled DEVS models are modular and interchangeable model components. Interface-oriented classification is a means to formalize the conditions of component replacement and coupling validity. It can be us... View full abstract»

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  • Verb phrase model specification via system entity structures

    Publication Year: 1994, Page(s):192 - 198
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (590 KB)

    In investigating front end model development, an environment is described that allows for model construction through pruning a domain specific system entity structure. The preformal stages of the model will be represented by a verb phrase. This representation is sufficiently derailed to serve as the basis for model construction and yet sufficiently "soft" to support knowledge acquisition during mo... View full abstract»

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  • Variable DEVS-variable structure modeling formalism: an adaptive computer architecture application

    Publication Year: 1994, Page(s):185 - 191
    Cited by:  Papers (5)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    Conventional modeling theory gives support only for representing model behavior, providing little aid for describing changes in model structure. Some models are better represented by changes in their structure. Instead of forcing this changes to be represented at the simple behavioral level, a strong theoretical support is needed to allow the representation of structural changes in a natural way. ... View full abstract»

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  • The DEVS formalism: a framework for logical analysis and performance evaluation for discrete event systems

    Publication Year: 1994, Page(s):170 - 175
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (501 KB)

    This paper proposes a framework which supports performance evaluation and logical analysis of discrete event systems using a unified formalism, i.e., the DEVS (discrete event system specification) formalism. For performance evaluation, DEVSim++, a realization of the DEVS formalism and the associated simulation algorithms in C++, is used. For logical analysis, the dual language approach is adopted.... View full abstract»

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  • An approach to object-oriented modeling and performance evaluation

    Publication Year: 1994, Page(s):164 - 169
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (440 KB)

    Diverse modeling and simulation tools are applied in extensive applications. The approaches used range from programming with a specific simulation description language to automation using an icon-driven user interface. The advantage in utilizing simulation is to assess the system's performance prior to an actual implementation. Functionality, maintainability, and expansibility are the primary crit... View full abstract»

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  • The fire support automated test system (FSATS): an approach to distributed command and control simulation

    Publication Year: 1994, Page(s):136 - 140
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (467 KB)

    The Fire Support Automated Test System (FSATS) is being developed by the Program Manager, Instrumentation, Targets, and Threat Simulators (PM ITTS) to provide a full suite of instrumentation capabilities to support the technical and operational testing of United States Army Fire Support Command and Control (C/sup 2/) Systems. The keystone of FSATS is the capability to simulate the tactical messagi... View full abstract»

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  • "Game Commander"-applying an architecture of game theory and tree lookahead to the command and control process

    Publication Year: 1994, Page(s):106 - 112
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (735 KB)

    This paper describes an architecture for emulation of those portions of the higher-echelon command and control task which deal with planning and evaluation of courses of action (COA). The architecture described utilizes the technique of tree lookahead with game theory. Tree lookahead is a technique for computing optimal decisions. In chess it is now the preferred method in real time. It is precise... View full abstract»

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  • FSATS: an object-based approach to distributed interactive simulation for C3I test and training

    Publication Year: 1994, Page(s):281 - 286
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (577 KB)

    FSATS is a tool designed to support both testing and training for C3I systems. It provides the capabilities for collecting C3I tactical message traffic, reducing it for later evaluation, and interactively simulating C3I units. FSATS hardware consists of a variable number of LAN-based processors, and its software may be distributed among these processors in a range of possible configurations. The s... View full abstract»

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  • Automatic performance monitoring and evaluation

    Publication Year: 1994, Page(s):274 - 280
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (647 KB)

    With distributed interactive simulation (DIS) there is an opportunity for large scale computer based training (CBT). As more simulators interact through DIS, the complexity of the training systems increases. This, in turn, increases the work load on the instructor. Students are performing more complex tasks that cannot be viewed at a glance to determine their state. If an instructor has several st... View full abstract»

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  • Fuzzy finite automata and their application to speech recognition

    Publication Year: 1994, Page(s):269 - 272
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 KB)

    A fuzzy pattern matching machine for speech recognition is simulated. Monosounds extracted from a set of keywords are stored in a fuzzy nondeterministic finite automaton, and a fuzzy pattern matching procedure is employed to activate the automaton for detection of the predetermined keywords in a given speech.<> View full abstract»

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  • Modeling the interactive mode of SmartPath

    Publication Year: 1994, Page(s):251 - 256
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (481 KB)

    SmartPath is a highway system simulator. The program can be used to test, simulate, and evaluate the performance of the designs of different modules and instrumentations, such as engine models, sensors, and communications. The package consists of two separate modules: simulation and animation. The simulation runs on Sun Spare or Silicon Graphics workstations. The animation program, runs on Silicon... View full abstract»

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  • SmartDb: an object-oriented simulation framework for intelligent vehicles and highway systems

    Publication Year: 1994, Page(s):244 - 250
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (656 KB)

    SmartDB is a framework for the uniform specification, simulation, optimization, evaluation, and implementation of intelligent vehicle highway system (IVHS) alternatives. The salient concepts in SmartDB are: (1) layered control architecture, (2) coordination of distributed control agents through communication, (3) combined discrete and continuous dynamical systems, known as hybrid systems, and thei... View full abstract»

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  • The DEVS framework for discrete event systems control

    Publication Year: 1994, Page(s):228 - 234
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (590 KB)

    This paper proposes a new methodology for analysis of discrete event systems and design of discrete event systems controllers. The methodology is based on the sound semantics for specification of discrete event systems, called the discrete event system specification (DEVS) formalism. It introduces concepts of inverse DEVS and defines controllability of discrete event systems expressed in the DEVS ... View full abstract»

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  • Supervising manufacturing system operation by DEVS-based intelligent control

    Publication Year: 1994, Page(s):221 - 226
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (513 KB)

    The purpose of a flexible manufacturing system (FMS) is to perform a series of well defined operations on a family of similar pads. The operations (e.g. milling or drilling) are realized by machines which are serviced by robots. A cell controller coordinates the flow of parts through the cell. Monitoring, i.e., to watch the system behavior during its operation and detect possible anomalies, is an ... View full abstract»

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  • A framework for hybrid modeling/simulation of discrete event systems

    Publication Year: 1994, Page(s):199 - 205
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (570 KB)

    This paper presents a hybrid modeling/simulation framework within which both accuracy in models and speed in simulation experimentations are obtained. Based on the Zeigler's DEVS formalism and associated system theory, the framework is based on the transformation of selected DEVS model into equivalent analytic ones to simulate both analytic and simulation models within a single environment. For hi... View full abstract»

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  • Distributing and maintaining knowledge: agents in variable structure environments

    Publication Year: 1994, Page(s):178 - 184
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (555 KB)

    The maintaining and adaptation of knowledge within changing environments is one of the crucial aspects in decentralized controlled and distributed systems. To explore different strategies and their consequences, the authors use an example where processors, structured in a hierarchy, are hired or fired responding to the requests of the current work load. The modeling and simulation approach uses th... View full abstract»

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  • Abstract simulator for the parallel DEVS formalism

    Publication Year: 1994, Page(s):157 - 163
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (553 KB)

    A parallel discrete-event simulation (DEVS) formalism which exploits the parallelism of transition collisions in the simulation of DEVS models is considered. We present a design for the abstract simulator needed to prove the formalism's soundness and to serve as a reference for implementation. The abstract simulator is composed of cooperating simulation engines, (simulators and coordinators) that ... View full abstract»

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  • Distributed simulation of DEVS-based multiformalism models

    Publication Year: 1994, Page(s):150 - 156
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (756 KB)

    In this paper we introduce a new approach for parallel, distributed simulation of modular, hierarchical DEVS and DEVS-based combined discrete/continuous multiformalism models. The algorithm combines conservative and optimistic distributed simulation strategies and is able to optimally exploit lookahead capabilities of the model. The object oriented implementation in C++ is intended to serve as a p... View full abstract»

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  • Distributed interactive simulation for intelligence data dissemination

    Publication Year: 1994, Page(s):141 - 147
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (751 KB)

    This paper is conceptual in nature, discussing the application of distributed interactive simulation (DIS) technology to the dissemination of strategic and tactical intelligence information to a broad base of military tactical decision makers and senior leaders. While the current thrust of DIS development is oriented toward the support of a priori training, systems acquisition engineering analysis... View full abstract»

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  • A distributed simulation system for team decisionmaking

    Publication Year: 1994, Page(s):129 - 135
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (724 KB)

    This paper gives an overview of a unique distributed, real-time simulation system for studying team decision-making and coordination-the DDD (distributed, dynamic, decision-making) paradigm. The DDD paradigm captures the essential elements in real-world decision-making problems and integrates them into a controlled, computer-mediated, laboratory setting. The DDD simulation system is implemented on... View full abstract»

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  • Automated path planning for simulation

    Publication Year: 1994, Page(s):122 - 128
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (543 KB)

    Automated route planning over digital synthetic terrain is of importance to systems involving simulated human entities. Using a route planner whose sole criteria is minimizing distance and elevation change, we analyze the effects of terrain resolution on path quality, and compare human and computer generated paths. We conclude that with some measures, the computer generated route plans are reasona... View full abstract»

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