The military relies heavily on the Global Positioning System (GPS) for positioning, navigation, and timing (PNT), but GPS access is easily blocked by methods such as jamming. In addition, many environments military operates (inside buildings, in urban canyons, under dense foliage, underwater, and underground) have limited or no GPS access.
To solve this challenge, Adaptable Navigation Systems (ANS) seeks to provide GPS-quality Positioning Navigation Timing (PNT) to military users regardless of the operational environment.
U.S. Department of Defense’s DARPA (Defense Advanced Research Projects Agency) is developing Adaptable Navigation Systems (ANS), which could be an alternate Positioning and Navigation Technology in the future
Source: DARPA
