Study of single photon echo detection technology in underwater target ranging

Xiao Lin Sui; Zheng Yu Zhang; Xiao Long Zhang; Fei Xuan; Ming Yu; Xiao Jun Tang; Shou Huan Zhou

doi:10.1117/12.575408

14 February 2005 Study of single photon echo detection technology in underwater target ranging

Xiao Lin Sui, Zheng Yu Zhang, Xiao Long Zhang, Fei Xuan, Ming Yu, Xiao Jun Tang, Shou Huan Zhou

Proceedings Volume 5634, Advanced Sensor Systems and Applications II; (2005) https://doi.org/10.1117/12.575408
Event: Photonics Asia, 2004, Beijing, China

Abstract

Because laser is scattered and attenuated acutely by the water, diffuse reflection of Gauss laser pulse comes back with discrete single photon. These discrete single photon can not form a complete echo wave corresponding to original laser wave. The detector can only output discrete pulses with probability of η(quantum efficiency) . The discrete pulses caused by echo wave, background light, electron hot emission of detection do not have distinct different characteristics in time domain or frequency domain, so echo wave can not be distinguished from these discrete pulses by traditional detection method. Through analysing the signal and noise statistic characteristics., we put forward a method that apply known probability model to detect probabilistic echo signal to resolve the problem hereinbefore mentioned images. The signal is very low in underwater laser ranging, so it is very difficult to recognize the echo wave. This paper introduces n method and uses it to process the signal. digital threshold detection is simulated with laser ranging radar and we get good results. This study will help to greatly improve the ability of laser ranging radar.

Citation Download Citation

Xiao Lin Sui, Zheng Yu Zhang, Xiao Long Zhang, Fei Xuan, Ming Yu, Xiao Jun Tang, and Shou Huan Zhou "Study of single photon echo detection technology in underwater target ranging", Proc. SPIE 5634, Advanced Sensor Systems and Applications II, (14 February 2005); https://doi.org/10.1117/12.575408

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

Signal detection

Ranging

Single photon

Photons

Sensors

Signal to noise ratio

Target detection

Show All Keywords

Keywords/Phrases

Search In:

Publication Years