Design of intelligent receiver system for phase-shift laser range finder

Fang-xiu Jia; Zhen-Liang Ding; Feng Yuan

doi:10.1117/12.810485

12 January 2009 Design of intelligent receiver system for phase-shift laser range finder

Fang-xiu Jia, Zhen-Liang Ding, Feng Yuan

Proceedings Volume 7133, Fifth International Symposium on Instrumentation Science and Technology; 71332U (2009) https://doi.org/10.1117/12.810485
Event: International Symposium on Instrumentation Science and Technology, 2008, Shenyang, China

Abstract

This paper presents the design of an intelligent receiver system based on DSP and Avalanche photodiode. A new method of changing the reverse bias voltage based on the real-time measured noise of the system is proposed to avoid the environment influence on the performance of APD and to obtain the optimal operating performance of the whole system. Both the reverse-biased voltage and the automatic gain control loop are adjusted together by DSP, and so the high SNR is achieved and reception light saturation is eliminated. Method of compensating the walk error based on the reflected signal amplitude is used to improve the precision of phase shift measurement. The laser range finder fitted with the newly designed system can get a dynamic range 1:1500 and a phase-shift measurement resolution better than 0.045°. The measured diatance resolution is 0.125mm when the modulation frequency is 150MHz.

Citation Download Citation

Fang-xiu Jia, Zhen-Liang Ding, and Feng Yuan "Design of intelligent receiver system for phase-shift laser range finder", Proc. SPIE 7133, Fifth International Symposium on Instrumentation Science and Technology, 71332U (12 January 2009); https://doi.org/10.1117/12.810485

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