Accession Number : ADA258921


Title :   Management of SIMNET and DIS Entities in Synthetic Environments


Descriptive Note : Master's thesis


Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING


Personal Author(s) : Sheasby, Steven M


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a258921.pdf


Report Date : Dec 1992


Pagination or Media Count : 71


Abstract : This thesis describes the techniques used to create an object manager utilized by an application program during a distributed interactive simulation. This work is currently utilized by a number of AFIT synthetic environment applications for use during a SIMNET exercise. An extensive review of distributed interactive simulations is presented. A discussion of the current distributed simulation protocol, SIMNET, is presented along with the future protocol standard, DIS. Finally, a brief discussion on dead reckoning and its importance during an exercise is presented. An analysis of the SIMNET and DIS protocols provided the basis for the creation of a series of C++ classes to store information on a simulation entity during an exercise. These C++ classes used class generalization and inheritance to differentiate between the different types of entities seen during an exercise. An entity object manager was developed to perform a set of basic functions required during an exercise as listed in a collection of SIMNET and DIS documents. The entity object manager uses the C++ entity class structure to manage the numerous entities viewed during a typical SIMNET exercise. The entity object manager also communicates with the the other exercise participants using two different government supplied network communications packages.


Descriptors :   *DATA MANAGEMENT , *MILITARY EXERCISES , *TACTICAL DATA SYSTEMS , FUNCTIONS , SIMULATION , COMPUTERS , THESES , STANDARDS , WORK , COLLECTION , STORES , DEAD RECKONING , NUMBERS , GRAPHICS , COMPUTER GRAPHICS , DOCUMENTS , STRUCTURES , NETWORKS , ENVIRONMENTS


Subject Categories : Computer Programming and Software
      Military Operations, Strategy and Tactics
      Command, Control and Communications Systems


Distribution Statement : APPROVED FOR PUBLIC RELEASE