Data Links, High Capacity Radios   BAE Systems is a recognized leader in wide-band spread spectrum and Link 16 tactical data links, including JTIDS and MIDS, and integration of C4I systems.   Combat Identification/IFF   We provide the expertise gained from our long history of developing and integrating digital transponders and mid-air collision avoidance systems for both the U.S. military and FAA.   Electronic Warfare and Countermeasures   For over 50 years we have been a leader in electronic countermeasures, providing cost-effective, operationally integrated, fully supported self-protection systems. Our high-fidelity modeling and simulation capabilities can duplicate all known threats and emulate integrated EW solutions to defeat them.   Reconnaissance and Surveillance   With expertise in theater airborne, advanced tactical air and electro-optical reconnaissance, and forward-looking IR navigational systems, BAE Systems is a leader in reconnaissance and surveillance technology.   Tactical Systems and Sensors   BAE Systems is a leader in electronic identification systems, infrared imaging, mine countermeasures, signature management, mobile operations towers, multimission hand-held or networked chemical agent point detection systems, and air deployed unattended ground sensors for chemical detection.   Avionics and Space Subsystems   We have provided industry leadership in precision landing systems, flight management systems, head-up displays, information processing, mission planning, launch vehicle, missile and satellite electronics and radiation-hardened digital components.   Systems Inertial Navigation Systems   Providing highly integrated and automated control for tomorrow's airborne missions, BAE Systems is a recognized leader in Doppler, GPS, and inertial navigation systems.   Digital Flight Controls, VMS, FADEC, and Power & Drive Electronics   We are the leaders in commercial fly-by-wire flight controls, Vehicle Management Systems, and Full Authority Digital Engine Controls. We provide hybrid-electric drive systems for both transit buses and advanced military vehicles.