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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

|November 29, 2012

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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:

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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.