128-Channel High-Linearity Resolution-Adjustable Time-to-Digital Converters for LiDAR Applications: Software Predictions and Hardware Implementations

Autor:	Wujun Xie, David Day-Uei Li, Haochang Chen, Yu Wang
Přispěvatelé:	Publica
Rok vydání:	2022
Předmět:	QA75 business.industry Computer science TK Linearity Ranging Converters Software Lidar Control and Systems Engineering Electrical and Electronic Engineering business Software analysis pattern Field-programmable gate array Computer hardware Communication channel
Zdroj:	IEEE Transactions on Industrial Electronics. 69:4264-4274
ISSN:	1557-9948 0278-0046
DOI:	10.1109/tie.2021.3076708
Popis:	This paper proposes a new calibration method, called the mixed-binning (MB) method, to pursue high-linearity time-to-digital converters (TDCs) for light detection and ranging (LiDAR) applications. The proposed TDCs were developed using tapped delay-line (TDL) cells in field-programmable gate arrays (FPGAs). With the MB method, we implemented a resolution-adjustable TDC showing excellent linearity in Xilinx UltraScale FPGAs. We demonstrate a 128-channel TDC to show that the proposed method is cost-effective in logic resources. We also developed a software tool to predict the performances of TDL-based TDCs robustly. Results from both software analysis and hardware implementations are in a good agreement and show that the proposed design has great potential for multichannel applications; the averaged DNL_(pk-pk) and INL_(pk-pk) are close to or even less than 0.05 LSB in multichannel designs.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::747309fd1681ba9e0262f33451fc0e37 https://doi.org/10.1109/tie.2021.3076708 Zobrazit plný text záznamu