Geolocation is a process that utilizes sensors to pick up enemy emissions and locate electronic warfare (EW) targets. It is of particular interest among EW professionals because it allows them to use the enemy's own emissions to help set GPS coordinates and accurately pinpoint a target for attack. This is a newly revised and greatly expanded edition of a classic Artech House book. It offers practical guidance in electronic warfare target location. It features a wealth of additional material, including important new chapters on time delay estimation and direction finding techniques. It provides practitioners with critical information on a variety of geolocation algorithms and techniques.