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

Daan Rosenmuller; Georgi I. Radulov; Kostas Doris; M.K. Matters-Kammerer

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

Daan Rosenmuller, Georgi I. Radulov, Kostas Doris, M.K. Matters-Kammerer

Integrated Circuits

Research output: Contribution to conference › Paper

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
Publication status	Accepted/In press - 11 May 2020

Keywords

Radar, binary phase shift keying, analog-digital conversion, error analysis

Fingerprint Dive into the research topics of 'Analysis of Time-Interleaved ADC Offset and Gain Mismatch Errors in PMCW Radar'. Together they form a unique fingerprint.

Cite this

@conference{72d2d59474344cecb021c7bfe1bd7447,

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 itsrobustness against interference and flexibility in the digitaldomain. However, there are stringent requirements for theAnalog-Digital Converter (ADC), in terms of speed and linearity,which are due to the needed radar range and Dopplerresolution. Time-interleaving is used to attain the required signalbandwidth while achieving a high effective number of bits(ENOB) by compensating mismatch errors between differenttime-interleaving channels. This paper analyzes the dominanttime-interleaving errors: offset and gain. The paper demonstrateshow they impact PMCW radar performance by creating ghosttargets and decreasing signal-to-noise ratio (SNR).",

keywords = "Radar, binary phase shift keying, analog-digital conversion, error analysis",

author = "Daan Rosenmuller and Radulov, {Georgi I.} and Kostas Doris and M.K. Matters-Kammerer",

year = "2020",

month = may,

day = "11",

language = "English",

}

TY - CONF

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

AU - Rosenmuller, Daan

AU - Radulov, Georgi I.

AU - Doris, Kostas

AU - Matters-Kammerer, M.K.

PY - 2020/5/11

Y1 - 2020/5/11

N2 - Phase-Modulated Continuous Wave (PMCW)Radar can enable future autonomous driving thanks to itsrobustness against interference and flexibility in the digitaldomain. However, there are stringent requirements for theAnalog-Digital Converter (ADC), in terms of speed and linearity,which are due to the needed radar range and Dopplerresolution. Time-interleaving is used to attain the required signalbandwidth while achieving a high effective number of bits(ENOB) by compensating mismatch errors between differenttime-interleaving channels. This paper analyzes the dominanttime-interleaving errors: offset and gain. The paper demonstrateshow they impact PMCW radar performance by creating ghosttargets and decreasing signal-to-noise ratio (SNR).

AB - Phase-Modulated Continuous Wave (PMCW)Radar can enable future autonomous driving thanks to itsrobustness against interference and flexibility in the digitaldomain. However, there are stringent requirements for theAnalog-Digital Converter (ADC), in terms of speed and linearity,which are due to the needed radar range and Dopplerresolution. Time-interleaving is used to attain the required signalbandwidth while achieving a high effective number of bits(ENOB) by compensating mismatch errors between differenttime-interleaving channels. This paper analyzes the dominanttime-interleaving errors: offset and gain. The paper demonstrateshow they impact PMCW radar performance by creating ghosttargets and decreasing signal-to-noise ratio (SNR).

KW - Radar, binary phase shift keying, analog-digital conversion, error analysis

M3 - Paper

ER -