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Multi-transmitter aperture synthesis with Zernike based aberration correction
Bahadir K Gunturk1, David J Rabb, Douglas F Jameson
1Louisiana State University, Department of Electrical & Computer Engineering, Baton Rouge, Louisiana 70803, USA. bahadir@ece.lsu.edu
Optics Express
|November 29, 2012
Summary
Multi-transmitter aperture synthesis enhances coherent imaging by creating overlapping speckle fields. This method uses Zernike polynomials to model aberrations, enabling high-order aberration estimation without phase unwrapping.
Area of Science:
- Coherent imaging
- Optical physics
- Signal processing
Background:
- Multi-transmitter aperture synthesis improves effective aperture in coherent imaging.
- Overlapping speckle fields allow for aberration computation from wavefront differences.
Purpose of the Study:
- To present a novel method for estimating high-order optical aberrations.
- To utilize Zernike polynomials for aberration modeling in multi-transmitter systems.
Main Methods:
- Employing multi-transmitter aperture synthesis to generate overlapping speckle fields.
- Using Zernike polynomials to model optical aberrations.
- Estimating high-order aberrations directly from wavefront differences without phase unwrapping.
Main Results:
- Successful modeling of aberrations using Zernike polynomials.
- Accurate estimation of high-order aberrations achieved.
- Elimination of the need for phase unwrapping in aberration analysis.
Conclusions:
- The presented method offers an efficient approach for aberration correction in coherent imaging.
- Zernike polynomial modeling simplifies high-order aberration estimation.
- This technique advances multi-transmitter aperture synthesis for improved imaging quality.
