NDLI: Extraneous-light resistant multipixel range sensor based on a low-power correlating pixel-circuit

Content Provider	IEEE Xplore Digital Library
Author	Zach, G. Davidovic, M. Zimmermann, H.
Copyright Year	2009
Description	Author affiliation: Vienna University of Technology, Institute of Electrodynamics, Microwave and Circuit Engineering, Gusshausstrasse 25/354, 1040, Austria (Zach, G.; Davidovic, M.; Zimmermann, H.)
Abstract	This work covers a correlation-based, optical time-of-flight matrix range sensor which is able to suppress ambient light up to 150klx full-electronically and autonomously in each single pixel. The CMOS-compatible sensor features 16×16 pixels and permits distance measurements with a standard deviation of 1cm (5cm) up to 1m (3.2m), while the linearity error is within ±2cm for the entire measurement range within a measurement time of 50ms per distance point. A 0.9W LED source is used to illuminate the field of view with near-infrared light, which is modulated at 10MHz. In this design, the current consumption could be reduced from 100µA to 2µA per pixel, while increasing the distance measurement performance at the same time.
Starting Page	236
Ending Page	239
File Size	929657
Page Count	4
File Format	PDF
ISBN	9781424443543
ISSN	19308833
DOI	10.1109/ESSCIRC.2009.5326018
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-14
Publisher Place	Greece
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical sensors Optical filters Optical modulation Optical attenuators Time measurement Distance measurement Optoelectronic and photonic sensors Lighting Pulse modulation Pulse measurements
Content Type	Text
Resource Type	Article

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