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Distributed aperture synthesis.

David Rabb1, Douglas Jameson, Andrew Stokes

  • 1Air Force Research Laboratory - Sensors Directorate, AFRL/RYJM B622, WPAFB, OH, 45433-7700, USA. David.Rabb@wpafb.af.mil

Optics Express
|July 1, 2010
PubMed
Summary
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Sharpness metrics can phase multiple small telescopes into one high-resolution imaging system. This technique enables detailed aperture synthesis, demonstrated through simulations and experiments.

Area of Science:

  • Astronomy and Optics
  • Image Processing

Background:

  • Distributed aperture synthesis combines data from multiple telescopes to achieve higher resolution.
  • Phasing optical field values is crucial for synthesizing a single, high-resolution image.

Purpose of the Study:

  • To apply sharpness metrics for phasing multiple coherent imaging systems.
  • To demonstrate the process of aperture synthesis using simulations and experiments.

Main Methods:

  • Utilizing sharpness metrics to align optical field values from individual apertures.
  • Performing simulations to model the aperture synthesis process.
  • Conducting experiments to validate the simulated results.

Main Results:

  • Successful application of sharpness metrics in phasing imaging systems.

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  • Demonstration of aperture synthesis principles through experimental validation.
  • Attainment of high-resolution image synthesis from an array of small telescopes.

    • Conclusions:

    • Sharpness metrics are effective for phasing in distributed aperture synthesis.
    • The presented methods and results illustrate a viable approach to aperture synthesis.
    • This technique offers a pathway to enhanced astronomical imaging capabilities.