Multi-threat capabilities provide continuous tracking.
Air National Guard 2011 Weapons Systems Modernization
NightHawk EO/IR Surveillance System
Boeing 737 AEW&C Wedgetail Early Warning Aircraft
AN/AAR-57 Common Missile Warning System (CMWS)
AN/APR-39 Digital Radar Warning Receiver Family
Sensors, Free Full-Text
AN/AAR-44B Infrared Warning Receiver
SUITE OF INTEGRATED INFRARED COUNTERMEASURES AND COMMON MISSILE WARNING SYSTEM (CMWS, AN/AAR-57) (SIIRCM/CMWS) INCLUDES: ADVANCED THREAT INFRARED COUNTERMEASURES (ATIRCM, AN/ALQ-212) - FY00 Activity
AN/AAR-44B Infrared Warning Receiver
Do fighter jets have radar that will show and warn of a missile coming head-on, or do they only scan their tails? - Quora
PDF) Missile warning and countermeasure systems in-flight testing, by threat simulation and countermeasure analysis in the field - art. no. 62061Y
AN/AAR-44B Infrared Warning Receiver