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

Research output: Contribution to conferencePaper

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 languageEnglish
Publication statusAccepted/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