Optical imaging process based on two-dimensional Fourier transform for synthetic aperture imaging ladar

Zhiwei Sun; Ya'nan Zhi; Liren Liu; Jianfeng Sun; Yu Zhou; Peipei Hou

doi:10.1117/12.2022977

17 September 2013 Optical imaging process based on two-dimensional Fourier transform for synthetic aperture imaging ladar

Zhiwei Sun, Ya'nan Zhi, Liren Liu, Jianfeng Sun, Yu Zhou, Peipei Hou

Author Affiliations +

Proceedings Volume 8877, Unconventional Imaging and Wavefront Sensing 2013; 88770L (2013) https://doi.org/10.1117/12.2022977
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

The synthetic aperture imaging ladar (SAIL) systems typically generate large amounts of data difficult to compress with digital method. This paper presents an optical SAIL processor based on compensation of quadratic phase of echo in azimuth direction and two dimensional Fourier transform. The optical processor mainly consists of one phase-only liquid crystal spatial modulator(LCSLM) to load the phase data of target echo and one cylindrical lens to compensate the quadratic phase and one spherical lens to fulfill the task of two dimensional Fourier transform. We show the imaging processing result of practical target echo obtained by a synthetic aperture imaging ladar demonstrator. The optical processor is compact and lightweight and could provide inherent parallel and the speed-of-light computing capability, it has a promising application future especially in onboard and satellite borne SAIL systems.

Citation Download Citation

Zhiwei Sun, Ya'nan Zhi, Liren Liu, Jianfeng Sun, Yu Zhou, and Peipei Hou "Optical imaging process based on two-dimensional Fourier transform for synthetic aperture imaging ladar", Proc. SPIE 8877, Unconventional Imaging and Wavefront Sensing 2013, 88770L (17 September 2013); https://doi.org/10.1117/12.2022977

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available