A CMOS receiver–TDC chip set for accurate pulsed TOF laser ranging
|Author:||Kurtti, Sami1; Jansson, Jussi-Pekka1; Kostamovaara, Juha1|
1Circuit and Systems Research Unit, University of Oulu, 90014, Finland
|Online Access:||PDF Full Text (PDF, 5.5 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2019120946173
Institute of Electrical and Electronics Engineers,
|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.
IEEE transactions on instrumentation and measurement
|Pages:||1 - 10|
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
213 Electronic, automation and communications engineering, electronics
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:||
172196 (Academy of Finland Funding decision)
255359 (Academy of Finland Funding decision)
263705 (Academy of Finland Funding decision)
251571 (Academy of Finland Funding decision)
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