A Direct Calibration Algorithm for ADC Interleaving
Chi-kwan Chan, Hina Suzuki, David Forbes, Andrew Thomas West, Arash Roshanineshat, Daniel P. Marrone, Amy Lowitz

TL;DR
This paper presents a new direct calibration algorithm for ADC interleaving systems that uses sinusoidal signals and Fourier analysis to correct phase, gain, and offset mismatches, improving signal accuracy.
Contribution
The paper introduces a novel, computationally efficient calibration method for ADC interleaving that outperforms existing techniques in accuracy and robustness.
Findings
Significantly improves signal reconstruction accuracy
Effective correction of phase, gain, and offset mismatches
Validated through extensive numerical simulations
Abstract
We introduce a novel direct calibration algorithm to address phase delay, gain, and offset mismatches in Analog-to-Digital Converter (ADC) time interleaving systems. These mismatches, common in high-speed data acquisition, degrade system performance and signal integrity, particularly in applications such as radio astronomy and very long baseline interferometry (VLBI). Our proposed algorithm uses a sinusoidal reference signal and Fourier analysis to isolate and correct each type of mismatch, providing a computationally efficient solution. Extensive numerical simulations validate the algorithm's effectiveness and demonstrate its ability to significantly enhance signal reconstruction accuracy compared to existing methods. This work provides a robust and scalable solution for maintaining signal fidelity in interleaved ADC systems and has broad applications in fields that require high-speed…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsAnalog and Mixed-Signal Circuit Design · Advanced Electrical Measurement Techniques · Advanced Power Amplifier Design
