{"ID":2837149,"CreatedAt":"2026-06-01T04:54:23.091178241Z","UpdatedAt":"2026-06-01T04:54:23.091178241Z","DeletedAt":null,"paper_url":"https://arxiv.org/abs/2511.20763","arxiv_id":"2511.20763","title":"A Direct Calibration Algorithm for ADC Interleaving","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 data acquisition.","short_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 astro...","url_abs":"https://arxiv.org/abs/2511.20763","url_pdf":"https://arxiv.org/pdf/2511.20763v1","authors":"[\"Chi-kwan Chan\",\"Hina Suzuki\",\"David Forbes\",\"Andrew Thomas West\",\"Arash Roshanineshat\",\"Daniel P. Marrone\",\"Amy Lowitz\"]","published":"2025-11-25T19:00:08Z","proceeding":"astro-ph.IM","tasks":"[\"astro-ph.IM\",\"eess.SP\"]","methods":"[]","has_code":false}