Calculating The Modulation Transfer Function Of Atmospheric Turbulence

T. J. Schulze

doi:10.1117/12.962479

1 February 1990 Calculating The Modulation Transfer Function Of Atmospheric Turbulence

T. J. Schulze

Proceedings Volume 1156, Airborne Reconnaissance XIII; (1990) https://doi.org/10.1117/12.962479
Event: 33rd Annual Technical Symposium, 1989, San Diego, United States

Abstract

A comprehensive model for calculating the degrading effects of atmospheric turbulence on the performance of long-range, airborne imaging systems is described. The model output is the Modulation Transfer Function (MTF) of the turbulent air in the conical ray bundle from the target to the sensor. Published data from the field of astronomy and other theoretical developments are incorported into the formulation. Two difficulties with previous formulations are avoided: the requirement to set a parameter to one of two values for near or far field geometry; and the requirement to choose between two different formulations for short and long exposures. These are handled in an automatic and continuous manner in this new model. Also, it was found that the index of refraction turbulence structure coefficient (Cn2) altitude profile has about the same value and appearance over most of the world; therefore, the Cn2 altitude profile is integrated and a plot of the results (parameter Ch) is included.

Citation Download Citation

T. J. Schulze "Calculating The Modulation Transfer Function Of Atmospheric Turbulence", Proc. SPIE 1156, Airborne Reconnaissance XIII, (1 February 1990); https://doi.org/10.1117/12.962479

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
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Modulation transfer functions

Turbulence

Atmospheric turbulence

Wavefronts

Airborne reconnaissance

Refraction

Photography

Show All Keywords

Keywords/Phrases

Search In:

Publication Years