Join the Center for Infrastructure Engineering Studies (CIES) and the Center for Intelligent Infrastructure for a talk with Dr. Zak Kassas titled “No GPS, No Problem: Exploiting Signals of Opportunity for Resilient and Accurate Autonomous Navigation in GPS-Denied Environments.” The talk will be 2-3:30 p.m. Wednesday, April 24, in Room 101 Butler-Carlton Civil Engineering Hall and via Zoom. Kassas is a professor of electrical and computer engineering at The Ohio State University.