Transparent optimistic synchronization in the high-level architecture via time-management conversion

With the widely application of High Level Architecture (HLA) standard that supports interoperability and reusability, correct understanding of time management and advance mechanism in HLA has been a concerning difficult problem in the field of distributed simulation. Aiming at the problem, the paper analyzed and compared difference between conservative time advance mechanism and optimistic time advance mechanism. The rollback manager was introduced to implement the optimistic time advance mechanism. The middleware was also applied to deal with the rollback process in simulation model. In order to make fully use of advantages of optimistic synchronization mechanism, Flash Queue Request (FQR) service that provided by HLA was used to arrive at an improved time advance algorithm.

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A Simulation System of Anti-Ship Missile Path Planning Oriented Ship Formation

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.532-533.645 ◽

2012 ◽

Vol 532-533 ◽

pp. 645-649

Author(s):

Gang Liu ◽

Song Yang Lao ◽

Lv Lin Hou ◽

Can Yuan

Keyword(s):

Path Planning ◽

Time Management ◽

Implementation Process ◽

Simulation System ◽

Distribution Area ◽

High Level Architecture ◽

Static Structure ◽

Simulation Strategy ◽

Tactical Decision ◽

High Level

According to analysis of relationship among fire distribution, area division and path planning, the thought of trinity tactical decision of surface ships formation missile path planning (SFMPP) is put forward. Expandable open simulation architecture is designed and established based on high level architecture HLA. In order to describe simulation requirement, the static structure model and dynamic behavior model were designed based on UML. Based on HLA/RTI specification, federation’s FOM/SOM is designed and developed. The implementation process of simulation system is expatiates, including simulation strategy, time management, modeling and the federates’ implementation process. The realization of SFMPP simulation system provides a reference trial platform for tactical application argumentation and armament development.

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Transparent State Management for Optimistic Synchronization in the High Level Architecture

Workshop on Principles of Advanced and Distributed Simulation (PADS'05) ◽

10.1109/pads.2005.34 ◽

2005 ◽

Cited By ~ 12

Author(s):

A. Santoro ◽

F. Quaglia

Keyword(s):

High Level Architecture ◽

State Management ◽

High Level ◽

Optimistic Synchronization ◽

Transparent State

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Physics-Based Modelling of Ship Replenishment at Sea Using Distributed Simulation

10.5957/smc-2009-005 ◽

2009 ◽

Author(s):

K. A. McTaggart ◽

R. G. Langlois

Keyword(s):

Time Management ◽

Data Exchange ◽

Distributed Simulation ◽

Ship Motions ◽

High Level Architecture ◽

Detailed Modelling ◽

Naval Operations ◽

Physics Based Simulation ◽

High Level ◽

Replenishment At Sea

Replenishment at sea is essential for sustainment of naval operations away from home ports. This paper describes physics-based simulation of the transfer of solid payloads between two ships. For a given operational scenario, the simulation can determine whether events such as breakage of replenishment gear or immersion of payload in the ocean will occur. The simulation includes detailed modelling of the replenishment gear and ship motions. Distributed simulation using the High Level Architecture facilitates time management and data exchange among simulation components.

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