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Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 13,
  • Issue 8,
  • pp. 081102-
  • (2015)

ns-scaled time-coding method for real-time 3D super-resolution range-gated imaging

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Abstract

We present a method of time coding with ABAB synchronization timing control for real-time 3D super-resolution range-gated imaging (3DSRGI). To meet the high precision of time delay and pulse width in ABAB synchronization time sequencing, phase shift is implemented to achieve ns-scaled delay and width accuracy without restoring to high clock frequencies. Theoretical analysis and experiments prove that 1 ns delay and width precision is obtained by our timing control unit based on a single field-programmable gate array with 5 ns clock cycle. Finally, a prototype experiment of 3DSRGI is demonstrated at a 10 Hz video rate with 696 pixels×520 pixels.

© 2015 Chinese Laser Press

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