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Improved Effectiveness Through DRFM-Based ECM Timesharing By Scott McDonald & Ken McRitchie Ottawa, Ontario, Canada

MC Countermeasure Inc. Improved Effectiveness Through DRFM-Based ECM Timesharing By Scott McDonald & Ken McRitchie Ottawa, Ontario, Canada Visit us at http://www.mc-cm.com. Overview. Introduction DRFM Issues Timeshare basics Results Summary. Introduction.

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Improved Effectiveness Through DRFM-Based ECM Timesharing By Scott McDonald & Ken McRitchie Ottawa, Ontario, Canada

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  1. MC Countermeasure Inc. Improved Effectiveness Through DRFM-Based ECM Timesharing By Scott McDonald & Ken McRitchie Ottawa, Ontario, Canada Visit us at http://www.mc-cm.com

  2. Overview • Introduction • DRFM Issues • Timeshare basics • Results • Summary Visit us at http://www.mc-cm.com

  3. Introduction • Discussion limited to DRFM-based ECM • generally “single threat” device • Typical radar environments are complex • Many emitters • Scanning/non-scanning • IR&D application of PRI Prediction that leads to ability to timeshare a single DRFM among multiple radars Visit us at http://www.mc-cm.com

  4. Single Emitter Visit us at http://www.mc-cm.com

  5. A Problem – Interleaved PRI Patterns Visit us at http://www.mc-cm.com

  6. Second Problem Situation • Weapon Systems that use separate Acquisition and Track radars • (Generally) not good enough jamming just the tracker Visit us at http://www.mc-cm.com

  7. Timeshare Architecture Visit us at http://www.mc-cm.com

  8. Advantages of Predictive Approach • Allows up-range false targets despite the (radar’s) use of PRI agility. • Helps resolve complications caused by pulse overlaps and missing pulses • Improved performance vs scanning radar • fast reacquisition – typically only a few PRI • increased ECM effectiveness. • Allows exclusion of other emitters Visit us at http://www.mc-cm.com

  9. Basic Algorithm • Highest priority assigned to Ch #1 • Lowest priority assigned to Ch #4 • First-come-first-served (with caveats) • Scanning emitters interrupt jamming of any non-scanner • Time co-incident detection settled by channel priority Visit us at http://www.mc-cm.com

  10. Visit us at http://www.mc-cm.com

  11. Signal Generation Visit us at http://www.mc-cm.com

  12. Visit us at http://www.mc-cm.com

  13. Visit us at http://www.mc-cm.com

  14. Visit us at http://www.mc-cm.com

  15. Visit us at http://www.mc-cm.com

  16. Visit us at http://www.mc-cm.com

  17. Summary • PRI prediction channels can be used to selectively track or ignore specific emitters. • PRI prediction reduces the effects of overlapping or missing pulses. • Timesharing can be used effectively to jam multiple radars with a single ECM asset. • Timesharing results in cost savings. Visit us at http://www.mc-cm.com

  18. Acknowledgement The authors would like to acknowledge the contributions of the other members of the MC Countermeasures team including: • Dan Grise • Remi Gauvin • Colin Jackson Visit us at http://www.mc-cm.com

  19. Questions For further information, please feel free to contact us at: MC Countermeasures Inc. http://www.mc-cm.com 39 Robertson Road, Suite 256 Nepean, Ontario, K2H 8R2 Canada Tel: +1 (613) 721-1552 scott@mc-cm.com Fax: +1 (613) 721-1553 ken@mc-cm.com

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