Laser time-of-flight measurement based on multi-channel time delay estimation

Chao Li; Qian Chen; Guohua Gu; Tian Man

doi:10.1117/12.2002746

15 March 2013 Laser time-of-flight measurement based on multi-channel time delay estimation

Chao Li, Qian Chen, Guohua Gu, Tian Man

Proceedings Volume 8611, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XIII; 86111H (2013) https://doi.org/10.1117/12.2002746
Event: SPIE LASE, 2013, San Francisco, California, United States

Abstract

In this paper, a novel method based on multichannel time delay estimation with linear fitting correction for laser time-of-flight (TOF) measurement is described. The laser TOF measurement system is constructed with a laser source, a stop receiver channel, a reference receiver multichannel, an ADC sampling unit and a digital signal processing unit. Limited by the sampling rate, the precision of laser TOF measurement is restricted no more than the ADC sampling period in conventional methods. As this problem is considered, multi-channel correlation time delay estimation with linear fitting correction is devised. It is shown that the measuring precision is better than 2ns with multi-channel time delay estimation and not influenced by SNR. The experimental results demonstrate that the proposed method is effective and stable.

Citation Download Citation

Chao Li, Qian Chen, Guohua Gu, and Tian Man "Laser time-of-flight measurement based on multi-channel time delay estimation", Proc. SPIE 8611, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XIII, 86111H (15 March 2013); https://doi.org/10.1117/12.2002746

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