Dr. Christophe Lecocq Profile

Dr. Christophe Lecocq

at CREC

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 21 August 2003 Paper

Sight laser detection modeling

Christophe Lecocq, Gilles Deshors, Olga Lado-Bordowsky, Jean-Louis Meyzonnette

Proceedings Volume 5086, (2003) https://doi.org/10.1117/12.486055

KEYWORDS: Sensors, Target detection, Atmospheric propagation, Scintillation, Charge-coupled devices, Turbulence, Interference (communication), Systems modeling, Signal detection, CCD image sensors

Read Abstract +

Since Sarajevo's sadly famous events (sniper alley), the military tried and hoped to detect snipers before they hit. The principle of the detection is based on the 'cat's eyes' effect according to which the light emitted by the system and incident on the sniper's sight reflects backward in the direction of the source. The system is thus composed of a laser emitter and a CCD array detector. Already existing equipment has been tested in operations and they present too low a probability of detection for the false alarm rate we want to reach. In order to specify equipment characteristics to industrials, it has been necessary to develop a sight laser detector model. The model presented here takes into account all the various elements of the system, from the laser emission to the CCD detection, and atmospheric propagation (ie attenuation and turbulence). The signal and noise probability density functions are calculated by combining the different elementary probability density functions encountered on the double-pass propagation. This Matlab coded model gives the probability of detection of the system for given geometrical (monostatic or bistatic) and electronic characteristics of the system and for a given probability of false alarms. In addition to this, measurements in the field made it possible to validate the budget link of the model and improve it. Those measurements also permitted to underline the importance of the target optical signature, namely its Laser Cross Section. The most significant parameters necessary to the validation of the model are measured. This study allows us to answer the question 'why is the probability of detection of existing systems too low and how could we increase it's efficiency?'

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

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:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years