University of Oulu

S. Kurtti, J. Jansson and J. Kostamovaara, "A CMOS Receiver–TDC Chip Set for Accurate Pulsed TOF Laser Ranging," in IEEE Transactions on Instrumentation and Measurement, vol. 69, no. 5, pp. 2208-2217, May 2020. doi: 10.1109/TIM.2019.2918372

A CMOS receiver–TDC chip set for accurate pulsed TOF laser ranging

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Author: Kurtti, Sami1; Jansson, Jussi-Pekka1; Kostamovaara, Juha1
Organizations: 1Circuit and Systems Research Unit, University of Oulu, 90014, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 5.5 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2020
Publish Date: 2019-12-09


An integrated receiver-TDC (time-to-digital converter) chip set is developed for pulsed time-of-flight (TOF) laser rangefinding. The receiver detects the current pulse from the optical detector and produces a timing mark for the TDC. The receiver uses time mode walk error compensation scheme achieving <+/-2.5 mm residual timing walk error within a dynamic range of ~1:40,000. The multi-channel TDC measures the time position, width and rise time of the echo pulses simultaneously with ~ 10 picosecond (ps) precision. Both chips are manufactured in 0.35-µm complementary metal-oxide semiconductor (CMOS) technology. The functionality of the chip set was demonstrated in a laser radar platform using 12 W and 3-ns optical pulses produced by a laser diode. A measurement accuracy of ~+/-3 mm was achieved with non-cooperative targets at a distance range of a few tens of metres within an amplitude range of received echoes of 1:40,000.

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Series: IEEE transactions on instrumentation and measurement
ISSN: 0018-9456
ISSN-E: 1557-9662
ISSN-L: 0018-9456
Volume: 69
Issue: 5
Pages: 2208 - 2217
DOI: 10.1109/TIM.2019.2918372
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This work was supported financially by the Academy of Finland (Centre of Excellence in Laser Scanning Research, contract no. 172196, and contracts nos. 255359, 263705 and 251571), which are gratefully acknowledged.
Academy of Finland Grant Number: 255359
Detailed Information: 255359 (Academy of Finland Funding decision)
263705 (Academy of Finland Funding decision)
251571 (Academy of Finland Funding decision)
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