Signal integrity is a field of study in electrical engineering that focuses on ensuring that electronic signals travel through a system or device without distortion or noise interference. This is crucial for maintaining the accuracy and reliability of electronic circuits, especially as technologies advance and signals become faster and more complex. Signal integrity researchers work to understand and analyze factors such as impedance, reflection, crosstalk, and electromagnetic interference that can affect signal quality, and develop techniques and tools to optimize signal integrity in various electronic systems and applications.