Analysis of Time-Interleaved ADC Offset and Gain Mismatch Errors in PMCW Radar

D. Rosenmuller; Kostas Doris; Georgi Radulov; Marion Matters-Kammerer

doi:10.1109/EuRAD48048.2021.00115

Analysis of Time-Interleaved ADC Offset and Gain Mismatch Errors in PMCW Radar

D. Rosenmuller, Kostas Doris, Georgi Radulov, Marion Matters-Kammerer

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

1 Citation (Scopus)

Abstract

Phase-Modulated Continuous Wave (PMCW) Radar can enable future autonomous driving thanks to its robustness against interference and flexibility in the digital domain. However, there are stringent requirements for the Analog-Digital Converter (ADC), in terms of speed and linearity, which are due to the needed radar range and Doppler resolution. Time-interleaving is used to attain the required signal bandwidth while achieving a high effective number of bits (ENOB) by compensating mismatch errors between different time-interleaving channels. This paper analyzes the dominant time-interleaving errors: Offset and gain. The paper demonstrates how they impact PMCW radar performance by creating ghost targets and decreasing signal-to-noise ratio (SNR).

Original language	English
Title of host publication	2020 17th European Radar Conference (EuRAD)
Publisher	Institute of Electrical and Electronics Engineers
Pages	434-437
Number of pages	4
ISBN (Electronic)	978-2-87487-061-3
DOIs	https://doi.org/10.1109/EuRAD48048.2021.00115
Publication status	Published - 3 Feb 2021
Event	17th European Radar Conference, EuRAD 2020 - Utrecht, Netherlands Duration: 10 Jan 2021 → 15 Jan 2021

Conference

Conference	17th European Radar Conference, EuRAD 2020
Country/Territory	Netherlands
City	Utrecht
Period	10/01/21 → 15/01/21

Keywords

analog-digital conversion
binary phase shift keying
error analysis
Radar

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10.1109/EuRAD48048.2021.00115

https://ieeexplore.ieee.org/document/9337377

Cite this

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title = "Analysis of Time-Interleaved ADC Offset and Gain Mismatch Errors in PMCW Radar",

abstract = "Phase-Modulated Continuous Wave (PMCW) Radar can enable future autonomous driving thanks to its robustness against interference and flexibility in the digital domain. However, there are stringent requirements for the Analog-Digital Converter (ADC), in terms of speed and linearity, which are due to the needed radar range and Doppler resolution. Time-interleaving is used to attain the required signal bandwidth while achieving a high effective number of bits (ENOB) by compensating mismatch errors between different time-interleaving channels. This paper analyzes the dominant time-interleaving errors: Offset and gain. The paper demonstrates how they impact PMCW radar performance by creating ghost targets and decreasing signal-to-noise ratio (SNR). ",

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doi = "10.1109/EuRAD48048.2021.00115",

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note = "17th European Radar Conference, EuRAD 2020 ; Conference date: 10-01-2021 Through 15-01-2021",

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Rosenmuller, D, Doris, K, Radulov, G & Matters-Kammerer, M 2021, Analysis of Time-Interleaved ADC Offset and Gain Mismatch Errors in PMCW Radar. in 2020 17th European Radar Conference (EuRAD)., 9337377, Institute of Electrical and Electronics Engineers, pp. 434-437, 17th European Radar Conference, EuRAD 2020, Utrecht, Netherlands, 10/01/21. https://doi.org/10.1109/EuRAD48048.2021.00115

Analysis of Time-Interleaved ADC Offset and Gain Mismatch Errors in PMCW Radar. / Rosenmuller, D.; Doris, Kostas; Radulov, Georgi ; Matters-Kammerer, Marion.

2020 17th European Radar Conference (EuRAD). Institute of Electrical and Electronics Engineers, 2021. p. 434-437 9337377.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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T1 - Analysis of Time-Interleaved ADC Offset and Gain Mismatch Errors in PMCW Radar

AU - Rosenmuller, D.

AU - Doris, Kostas

AU - Radulov, Georgi

AU - Matters-Kammerer, Marion

PY - 2021/2/3

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N2 - Phase-Modulated Continuous Wave (PMCW) Radar can enable future autonomous driving thanks to its robustness against interference and flexibility in the digital domain. However, there are stringent requirements for the Analog-Digital Converter (ADC), in terms of speed and linearity, which are due to the needed radar range and Doppler resolution. Time-interleaving is used to attain the required signal bandwidth while achieving a high effective number of bits (ENOB) by compensating mismatch errors between different time-interleaving channels. This paper analyzes the dominant time-interleaving errors: Offset and gain. The paper demonstrates how they impact PMCW radar performance by creating ghost targets and decreasing signal-to-noise ratio (SNR).

AB - Phase-Modulated Continuous Wave (PMCW) Radar can enable future autonomous driving thanks to its robustness against interference and flexibility in the digital domain. However, there are stringent requirements for the Analog-Digital Converter (ADC), in terms of speed and linearity, which are due to the needed radar range and Doppler resolution. Time-interleaving is used to attain the required signal bandwidth while achieving a high effective number of bits (ENOB) by compensating mismatch errors between different time-interleaving channels. This paper analyzes the dominant time-interleaving errors: Offset and gain. The paper demonstrates how they impact PMCW radar performance by creating ghost targets and decreasing signal-to-noise ratio (SNR).

KW - analog-digital conversion

KW - binary phase shift keying

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M3 - Conference contribution

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BT - 2020 17th European Radar Conference (EuRAD)

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T2 - 17th European Radar Conference, EuRAD 2020

Y2 - 10 January 2021 through 15 January 2021

ER -

Analysis of Time-Interleaved ADC Offset and Gain Mismatch Errors in PMCW Radar

Abstract

Conference

Keywords

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