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Presented by Lane Carlson1 M. Tillack1, T. Lorentz1, J. Spalding1, D. Turnbull1 N. Alexander2, G. Flint2, D. Goodin2, R

Omnipresent Target Engagement Requirement. All individual tracking and engagement components have been operated successfully.All components necessary for a glint-only hit-on-the-fly demo have been integrated and are operational.. Final Key Requirement:20 m engagement accuracy in (x,y,z) at

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Presented by Lane Carlson1 M. Tillack1, T. Lorentz1, J. Spalding1, D. Turnbull1 N. Alexander2, G. Flint2, D. Goodin2, R

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    2. Omnipresent Target Engagement Requirement All individual tracking and engagement components have been operated successfully. All components necessary for a glint-only hit-on-the-fly demo have been integrated and are operational.

    3. Current tabletop target engagement demo is complete with one simulated driver beam

    4. Hit-on-the-fly experiment has demonstrated engagement on moving target Update time of Poisson spot centroiding algorithm down from 10 ms to 3.5 ms in software. Fringes off falling target counted over 3 mm. Using crossing sensors, the timing & triggering system triggers all necessary lasers/components on-the-fly. Engaged moving targets with a simulated driver beam by using the glint return signal to steer a fast steering mirror. Verification system has been used to measure error in target engagement. 150 µm range 6 µm resolution

    5. A range of tracking/engagement scenarios call for different requirements

    7. Reduced region of interest (ROI) technique further improves update time Update time reduced from 10 ms to 3.5 ms by implementing a “dynamic ROI” in software. Number of pixels to process is reduced from 307k to 10k.

    8. New centroiding algorithm implements dynamic ROI

    10. Fringe counting has been demonstrated over 3 mm Lower-noise photo-detector Higher-power laser (60 mW) => Fringes off falling target counted over 3 mm

    12. Crossing sensors & real-time operating system compute predicted target location on-the-fly

    14. All necessary components have been integrated for glint-only target engagement demo

    15. Wedged dichroic mirror compensates for glint/chamber center offset

    16. We have engaged moving targets with a simulated driver beam

    17. Effort to improve engagement accuracy to 20 µm must address & minimize all uncertainties

    18. Glint return is used to make one final steering mirror correction depending on PSD reading

    19. Peak-hold circuit picks off PSD voltage more consistently than software

    21. Applet post-processes snapshot to verify target engagement accuracy

    22. Summary of progress & plans

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