Duvenhage, BNel, JJ2007-08-022007-08-022007-09Duvenhage, B and Nel, JJ. 2007. Inaccuracies when mixing coordinate reference frameworks in a system of systems simulation. IEEE Africon 2007, Windhoek, Namibia, 26-28 September, 2007, pp 7078038606xhttp://hdl.handle.net/10204/1068The modelling of military systems of systems invariably involves the incorporation of existing, often shared, models into larger and more complex simulations. The sharing of models between simulations has long been the goal of the simulation community and although the resulting simulations expand the application domain of the models it comes at a cost. In this paper the authors highlight one of the issues faced, namely the use of different coordinate frameworks on performance and quantifies the errors that could be introduced into the simulation. It starts by providing an overview of the most commonly used coordinate frameworks and then elaborates on some of the experiences gained through its application in the Virtual Ground Based Air Defence System (GBADS) simulator. The focus is on the mixing of flat earth convention and spherical earth convention. The authors conclude with further motivation why a common earth reference model should be used for all simulation entities and, more importantly, why it should be a “real world” earth reference modelenGround based air defence systemGBADSCommunity simulationMilitary system modellingConference PresentationDuvenhage, B., & Nel, J. (2007). Inaccuracies when mixing coordinate reference frameworks in a system of systems simulation. http://hdl.handle.net/10204/1068Duvenhage, B, and JJ Nel. "Inaccuracies when mixing coordinate reference frameworks in a system of systems simulation." (2007): http://hdl.handle.net/10204/1068Duvenhage B, Nel J, Inaccuracies when mixing coordinate reference frameworks in a system of systems simulation; 2007. http://hdl.handle.net/10204/1068 .TY - Conference Presentation AU - Duvenhage, B AU - Nel, JJ AB - The modelling of military systems of systems invariably involves the incorporation of existing, often shared, models into larger and more complex simulations. The sharing of models between simulations has long been the goal of the simulation community and although the resulting simulations expand the application domain of the models it comes at a cost. In this paper the authors highlight one of the issues faced, namely the use of different coordinate frameworks on performance and quantifies the errors that could be introduced into the simulation. It starts by providing an overview of the most commonly used coordinate frameworks and then elaborates on some of the experiences gained through its application in the Virtual Ground Based Air Defence System (GBADS) simulator. The focus is on the mixing of flat earth convention and spherical earth convention. The authors conclude with further motivation why a common earth reference model should be used for all simulation entities and, more importantly, why it should be a “real world” earth reference model DA - 2007-09 DB - ResearchSpace DP - CSIR KW - Ground based air defence system KW - GBADS KW - Community simulation KW - Military system modelling LK - https://researchspace.csir.co.za PY - 2007 SM - 078038606x T1 - Inaccuracies when mixing coordinate reference frameworks in a system of systems simulation TI - Inaccuracies when mixing coordinate reference frameworks in a system of systems simulation UR - http://hdl.handle.net/10204/1068 ER -