AUTHOR=Stanescu Denis , Digulescu Angela , Ioana Cornel , Serbanescu Alexandru TITLE=Corrigendum: Spread spectrum modulation recognition based on phase diagram entropy JOURNAL=Frontiers in Signal Processing VOLUME=3 YEAR=2023 URL=https://www.frontiersin.org/journals/signal-processing/articles/10.3389/frsip.2023.1334782 DOI=10.3389/frsip.2023.1334782 ISSN=2673-8198