Well-known longitudinal GPS jammers has a strong interference performance, and can block the enemy on the signal battlefield, the collapse of radio systems, plays an essential role in the outcome of the war. The US military is working on new technology designed to avoid the threat of gps jammer. . We come to a detailed look at this event.
The military is developing a new battlefield tool that will help land forces navigate hostile territory without compromising GPS platforms. Instead, combatants will use radio frequency signals as a source of positioning information. To view navigation solutions on a map, the tool connects to a smartphone running the Air Force Android Tactical Assault kit.
Jointly with the Air Force Research Laboratory (AFRL), Echo Ridge LLC, based in Sterling, Virginia, is designing the technology to integrate a small, low-power package that can be transported by ground operators, according to Mark Smearcheck, electronic engineer with the AFRL sensors department.
The company created an algorithm to aggregate opportunity signals from various radio frequency sources and then worked to provide an additional source for backup, positioning and synchronization. The algorithm is used to determine a position based on the difference in time of arrival of these signals, which do not operate on the same frequency as the GPS.
“We are measuring signals that have known or discovered geographic locations,” said John Carlson, technical director of Echo Ridge. “Because we are able to measure these signals precisely, we can accurately estimate the position without growth error over time or distance traveled.”
Echo Ridge and AFRL detector management recently conducted a field test of a prototype device at Fort Bragg, North Carolina.
Although GPS revolutionized the war by providing unmatched positioning and navigation capabilities, many military platforms have become overly dependent on it, making GPS signals a prime target for enemies, the military said. Air.
“Opponents use GPS jammers to disrupt Allied operations and protect themselves from attacks by precision aircraft launched by airplanes,” said Joseph Cogliano, spokesperson for the Small Business Innovation and Transfer Research Program. small business technology. Office of Wright Patterson Air Force Base in Ohio. “These jammers deny access to the GPS signal for our land forces in the region, which makes navigation difficult.”
After the initial success of the field test, Echo Ridge will work to improve the usability of the technology and resolve robustness issues to prepare the device for wider field use. Funding from AFRL’s Center for Rapid Innovation, known as Direct-to-Phase II of the SBIR / STTR program, has enabled Echo Ridge to develop the laboratory concept in the prototype and beyond.
But it is very difficult to eliminate the threat of GPS, and GPS technology is constantly updated. It is very difficult to completely eliminate GPS interference.