Lidar monitoring of infrared target detection ranges through adverse weather

Luc R. Bissonnette; Gilles Roy; Jean-Marc Theriault

doi:10.1117/12.330212

3 November 1998 Lidar monitoring of infrared target detection ranges through adverse weather

Luc R. Bissonnette, Gilles Roy, Jean-Marc Theriault

Proceedings Volume 3433, Propagation and Imaging through the Atmosphere II; (1998) https://doi.org/10.1117/12.330212
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

Despite recent technical advances, adverse weather still constitutes an important decision factor in the efficient use of IR sensors. The presence of fog, clouds or precipitation affects both the IR transmission and background properties of the atmosphere. Taking these effects into account requires the knowledge of the optical parameters of fog, clouds or precipitation which, in general, fluctuate too much on a scale of a few kilometers to be predictable with acceptable accuracy. Therefore, systems performance calculations based on modeling alone cannot provide all the necessary information for real time, on-site decision making. A promising alternative is continuous monitoring of atmospheric aerosol properties with a lidar. The method use in this study is the multiple-field- of-view technique which takes advantage of the information contained in the multiple scattering contributions to solve for both the droplet concentration and effective diameter. We can then use these solutions to derive the atmospheric radiance and transmittance, and calculate from there the contrast-to-noise ratio of IR images of small targets. Using actual lidar probings, examples of performance curves of a generic surveillance sensor are obtained for two types of targets. Results show that performance can drastically change over an interval as short as one minute, which emphasizes the need for real time, on site monitoring in adverse weather.

Citation Download Citation

Luc R. Bissonnette, Gilles Roy, and Jean-Marc Theriault "Lidar monitoring of infrared target detection ranges through adverse weather", Proc. SPIE 3433, Propagation and Imaging through the Atmosphere II, (3 November 1998); https://doi.org/10.1117/12.330212

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
12 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Clouds

LIDAR

Missiles

Imaging systems

Atmospheric modeling

Mid-IR

Scattering

Show All Keywords

Keywords/Phrases

Search In:

Publication Years