A. Baharmast, S. Kurtti and J. Kostamovaara, "A Wide Dynamic Range Laser Radar Receiver Based on Input Pulse-Shaping Techniques," in IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 67, no. 8, pp. 2566-2577, Aug. 2020, doi: 10.1109/TCSI.2020.2983834
A wide dynamic range laser radar receiver based on input pulse-shaping techniques
|Author:||Baharmast, Aram1; Kurtti, Sami1; Kostamovaara, Juha1|
1Circuits and Systems Research Unit, University of Oulu, 90014 Oulu, Finland
|Online Access:||PDF Full Text (PDF, 6.8 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2020051435467
Institute of Electrical and Electronics Engineers,
|Publish Date:|| 2020-05-14
This paper presents a Time-of-Flight laser radar receiver based on pulse-shaping at the input to the receiver channel, in which the first zero-crossing point of the converted pulse is marked as the timing moment. In this technique, an LC resonator is combined with a nonlinear feedback TIA to achieve high accuracy and high precision within a wide dynamic range. The key advantage is that the receiver does not require any post compensation or gain control techniques so that the total complexity of the TOF radar is reduced considerably. Measurements made in a 0.35μ m standard CMOS process show a bandwidth of 230MHz and an input-referred noise of 70nA RMS. The receiver chip consumes 155mW power from a 3.3V supply. The single-shot precision and accuracy of the receiver within a dynamic range of 1:50,000 are ~ 15mm(SNR=12) and ~ ± 15mm respectively. A wider dynamic range can be achieved with a larger accuracy tolerance. The functionality of the proposed receiver channel is also verified over an input pulse variation and temperature range of 0°C to 50°C.
IEEE transactions on circuits and systems. I, Regular papers
|Pages:||2566 - 2577|
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
213 Electronic, automation and communications engineering, electronics
This work was supported by the Academy of Finland under Contracts 307362 (Centre of Excellence in Laser Scanning Research) and 317144.
|Academy of Finland Grant Number:||
307362 (Academy of Finland Funding decision)
317144 (Academy of Finland Funding decision)
© The Authors 2020. This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/.