Open AccessProceedings Article
A receiver channel with a leading edge timing discriminator for a pulsed time-of-flight laser radar
T. Peltola,Tarmo Ruotsalainen,P. Palojarvi,Juha Kostamovaara +3 more
- pp 427-430
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TLDR
An integrated receiver channel with a wide dynamic range for a pulsed time-of-flight (TOF) laser rangefinder has been designed and tested in this paper, where the circuit uses leading edge timing discrimination.Abstract:
An integrated receiver channel with a wide dynamic range for a pulsed time-of-flight (TOF) laser rangefinder has been designed and tested. The circuit uses leading edge timing discrimination. The bandwidth of the receiver channel is 250 MHz and the maximum transimpedance 40 kΩ. The single-shot distance measurement accuracy is 65 mm, taking into account walk error (input signal amplitude varies in the range from 1 to 4000) and jitter (+/-3σ).read more
Citations
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Journal ArticleDOI
Receiver channel with resonance-based timing detection for a laser range finder
TL;DR: An integrated receiver channel for a pulsed time-of-flight laser range finder is presented, which operates in a wide dynamic range without gain control by converting the received unipolar pulse to a bipolar waveform already after the optical detector before the signal is fed to amplifier blocks.
Proceedings ArticleDOI
A CMOS receiver for a pulsed time-of-flight laser rangefinder
TL;DR: An integrated CMOS 0.35/spl mu/m receiver channel with a wide dynamic range for a pulsed time-of-flight laser rangefinder was designed and tested as discussed by the authors.
Patent
Range finding method of pulsed laser rangefinder
TL;DR: In this article, a range finding method of a pulsed laser rangefinder is described, where a photoelectric detector, an amplifier, a double-channel comparator, a time digital converter TDC and a measurement control module are connected with the pulsed light.
Proceedings ArticleDOI
An integrated optical receiver with wide-range timing discrimination characteristics
S. Kurtti,J. Kostamovaara +1 more
TL;DR: An integrated receiver channel with a wide dynamic range for a pulsed time-of-flight laser rangefinder was designed and tested and the timing discriminator is realized so that the received unipolar pulse is converted to a bipolar signal at the front-end of the receiver channel, thus gain control and off-chip components are not needed.
Proceedings ArticleDOI
Wide dynamic range CMOS receivers for a pulsed time-of-flight laser range finder
Jan Nissinen,Juha Kostamovaara +1 more
Abstract: Two integrated CMOS 0.18 /spl mu/m receiver channels, with wide dynamic range, for a pulsed time-of-flight laser range finder were designed. The circuits use a timing discriminator based on a high-pass CR-filter at the input of the receiver to produce a bipolar pulse from a unipolar one. This pulse has a zero-crossing point that is amplitude independent and thus a wide dynamic range can be achieved by detecting it. Two different structures for the front-end have been presented. The simulated bandwidths and transimpedances are 370 MHz, 280 MHz and 3.4 M/spl Omega/, 5 M/spl Omega/. The simulated walk error is under 100 ps over a 1:1000 dynamic range for typical process parameters in both channels.
References
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Journal ArticleDOI
Profiling of hot surfaces by pulsed time-of-flight laser range finder techniques
TL;DR: Measurements indicate that it is possible to use the pulsed TOF laser radar technique in demanding measurement applications of this kind to obtain reliable data on the lining wear rate of a hot converter in a steel works.
Journal ArticleDOI
A current-mode gain-control scheme with constant bandwidth and propagation delay for a transimpedance preamplifier
TL;DR: In this article, a current buffer with variable attenuation is placed between the photodetector and the transimpedance preamplifier to increase the input dynamic range of a wideband optoelectronic receiver.
Journal ArticleDOI
Low-noise monolithic amplifier design: bipolar versus CMOS
TL;DR: In this paper, a comparison of the best noise performance obtainable by the use of bipolar and CMOS approaches for matching a given signal source is presented, where noise matching conditions are derived for three different types of source impedance, i.e., resistive, capacitive, and inductive.