University of Oulu

S. Kurtti, J. Nissinen, J. -. Jansson and J. Kostamovaara, "A CMOS chip set for accurate pulsed time-of-flight laser range finding," 2018 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), Houston, TX, 2018, pp. 1-5. doi: 10.1109/I2MTC.2018.8409646

A CMOS chip set for accurate pulsed time-of-flight laser range finding

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Author: Kurtti, S.1; Nissinen, J.1; Jansson, J.-P.1;
Organizations: 1University of Oulu, Faculty of Informat ion Technology and Electrical Engineering, Circuits and Systems Research Unit, Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 2.1 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2018
Publish Date: 2018-10-02


A laser rangefinder device based on pulsed time-of-flight (TOF) distance measurement techniques was constructed and tested. Key blocks of the system are the integrated receiver channel and the integrated time-to-digital converter (TDC) fabricated in a 0.35-um CMOS technology. The receiver-TDC chip set is capable of measuring the time position, rise time and pulse width of incoming optical pulses with ps precision in the amplitude range of more than 1: 50 000. The timing detection is based on leading edge detection in the receiver channel, and the amplitude-dependent timing error is compensated for by utilizing the multichannel TDC. A measurement distance of 100 m is achieved to a target with a reflectance of about 10% at the signal level of SNR = 6, with an optical output power and receiver aperture of 12 W and 18 mm, respectively.

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ISBN: 978-1-5386-2222-3
ISBN Print: 978-1-5386-2223-0
Pages: 1 - 5
DOI: 10.1109/I2MTC.2018.8409646
Host publication: 2018 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), 14-17 May 2018, Houston, TX, USA
Conference: IEEE International Instrumentation and Measurement Technology Conference
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: The authors would like to acknowledge financial support from Academy of Finland (Center of Excellence in Laser Scanning Research, contract no. 307362, and contracts no. 255359 and 263705).
Academy of Finland Grant Number: 255359
Detailed Information: 255359 (Academy of Finland Funding decision)
263705 (Academy of Finland Funding decision)
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