Canopy induced aberration correction in airborne electro-optical imaging systems

James A. Harder; Michaelene W. Sprague

doi:10.1117/12.898276

28 September 2011 Canopy induced aberration correction in airborne electro-optical imaging systems

Proceedings Volume 8185, Electro-Optical and Infrared Systems: Technology and Applications VIII; 81850H (2011) https://doi.org/10.1117/12.898276
Event: SPIE Security + Defence, 2011, Prague, Czech Republic

Abstract

An increasing number of electro-optical systems are being used by pilots in tactical aircraft. This means that the afore mentioned systems must operate through the aircrafts canopy, unfortunately the canopy functions as a less than ideal lens element in the electro-optical sensor optical path. The canopy serves first and foremost as an aircraft structural component, considerations like minimizing the drag co-efficient and the ability to survive bird strikes take precedence over achieving optimal optical characteristics. This paper describes how the authors characterized the optical characteristics of an aircraft canopy. Families of modulation transfer functions were generated, for various viewing geometries through the canopy and for various electro-optical system entrance pupil diameters. These functions provided us with the means to significantly reduce the effect of the canopy "lens" on the performance of a representative electro-optical system, using an Astigmatic Corrector Lens. A comparison of the electro-optical system performance with and without correction is also presented.

Citation Download Citation

James A. Harder and Michaelene W. Sprague "Canopy induced aberration correction in airborne electro-optical imaging systems", Proc. SPIE 8185, Electro-Optical and Infrared Systems: Technology and Applications VIII, 81850H (28 September 2011); https://doi.org/10.1117/12.898276

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Electro optical systems

Cameras

Imaging systems

Diffraction

Modulation transfer functions

Sensors

Aberration correction

Show All Keywords

Keywords/Phrases

Search In:

Publication Years