The Laboratory of Signals and Systems (L2S) is a joint research unit (UMR 8506) of the CNRS, CentraleSupélec and the University of Paris-Saclay created in 1974. Research at L2S focuses on fundamental and applied mathematical aspects of control theory, AI, data science, information, signal and image processing, communication, and network theory.

The laboratory is organized into three main scientific domains: control and systems, signal processing and statistics, networks and telecommunications. Interdisciplinary themes related to life and health sciences, industry, and energy have an essential place.