Activity Based Intelligence: Principles (The Artech House Electronic Warfare Library)

Patrick Biltgen is the Analytics Family Offering Lead at Perspecta. Previously, he was a a senior principal systems engineer supporting the National Reconnaissance Office (NRO) and the senior mission engineer for BAE Systems' Intelligence Integration Directorate where he was the subject matter expert on activity-based intelligence (ABI) capabilities for the National Geospatial-Intelligence Agency (NGA). He received his Ph.D., M.S., and his B.S. in aerospace engineering from the Georgia Institute of Technology.

Stephen Ryan is a senior manager in systems engineering in Northrop Grumman Corporation's Aerospace Systems sector, focused on advanced space systems development. He has previously served as a senior program manager, chief architect, and mission engineering manager across Northrop Grumman's advanced autonomy/artificial intelligence R&D, cyber, and intelligence, surveillance, and reconnaissance (ISR) businesses. He was previously a decorated intelligence analyst with the National Geospatial-Intelligence Agency (NGA), where he specialized in ABI and terrorism analysis, spending almost a year deployed to Afghanistan supporting counterterrorism and counterinsurgency operations. He is pursuing his M.S. in systems engineering from The Johns Hopkins University, received his M.A. in security studies from Georgetown University, and received his B.A. in international affairs from The George Washington University.