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Introduction to Threat Evaluation and Weapon Assignment

Introduction to Threat Evaluation and Weapon Assignment. Jaco Roux * Jan van Vuuren. LEDGER Annual Conference CSIR, Pretoria November 29 th - 30 th , 2007. Presentation Overview. What is GBADS? What is TEWA? Tactical environment & assets Sensors & effectors Threats to the system

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Introduction to Threat Evaluation and Weapon Assignment

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  1. Introduction to Threat Evaluation and Weapon Assignment Jaco Roux* Jan van Vuuren LEDGER Annual Conference CSIR, Pretoria November 29th - 30th, 2007

  2. Presentation Overview • What is GBADS? • What is TEWA? • Tactical environment & assets • Sensors & effectors • Threats to the system • TE DSS hierarchy • Three TE model types • Project Status

  3. Targets Weapon Systems Radar Sensors Assets • Search Radar • Tracking Radar • Guns and Cannons • SAM System HQ • Command and Control • Operators • TEWA System What is GBADS?

  4. What is TEWA?

  5. 60m 300m 250m 30m 30m 300m Point Asset Rectangular Asset Surface Asset Tactical Environment & Assets • Threats are air based • Defended assets land based • Asset attributes • Size • Geometry • Asset priority

  6. Sensors & Effectors • Sensors: • Track management • Sensor and system tracks • Hostility and type classification • Measurable attributes • Derived attributes • Effectors: • Efficiency of effector • WS and tracking sensor • SSHP compute Pkill • Assignment to threats

  7. Threats of the system • Threat movement in 3 dimensions • Approach and attack techniques • Interested in the VSHORAD ranges, i.e. attack techniques • Divided into phases and stages

  8. TE DSS Hierarchy

  9. Deterministic Models • Time-to-DA • Shortest Orthogonal Distance • Bearing • Course

  10. TE DSS Hierarchy

  11. Probability-based Model A H K

  12. Project Status and Future Work • TE Status • Established theoretical background (4 years) • Flagging & Deterministic models implemented • Working on Probability-based model subcomponents • Data from TFDC & OTB • WA Status • Working on theoretical background (2 years) • Greedy WA and AP solutions implemented • Working on all inclusive WA solution for benchmark • Testing and Evaluation Status • Started testing and TE models integrated • Integration with the VGD (collaboration with DPSS) • Growing Knowledgebase • New masters student 2008 – OIL • Collaboration with IMT (work sessions) • TEWA on higher levels (JAD) – (RRS & DPSS) • Future implementations such as Task Force Assignment (SAP)

  13. References [1] Roux JN, 2006, Real-time Threat Evaluation of Fixed Wing Aircraft in a Ground Based Air Defence Environment, MSc Eng Thesis, University of Stellenbosch, Stellenbosch. [2] Roux JN & Van Vuuren JH, 2007, Threat evaluation and weapon assignment decision support: A review of the state of the art, ORiON, to appear. [3] Roux JN & Van Vuuren JH, 2007, Real-time threat evaluation in a ground based air defence environment, submitted. www.tewa.co.za

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