In modern society, the Global Positioning System (GPS) has become an integral part of military and civilian life. However, as reliance on GPS grows, so does the risk of interference and attacks on GPS signals. https://www.silencejammer.com/....mobile-jammer-cell-p This not only threatens the military's ability to operate, but can also have serious consequences for civilian life. https://www.silencejammer.com/....gps-jammer-blocker-c To address this challenge, a team at the Aerospace Communications Systems Implementation Branch developed a new technology called Blind Interference Signal Suppression (BLISS) to protect GPS receivers from jamming signals. https://www.silencejammer.com/....wifi-jammer-bluetoot
　　The Critical Role of GPS
　　The 24 satellites of the Global Positioning System do more than just help users find the nearest gas station. https://www.silencejammer.com/....drone-jammer-anti-ua They play a vital role in military missions, including navigation, missile systems, and battlefield situational awareness. https://www.silencejammer.com/ As military operations become more dependent on GPS, the military warns that GPS could become a single point of failure, so it often conducts exercises without GPS to ensure that it can maintain its combat capabilities in the event of a system failure.https://www.silencejammer.com/gsm-jammer-portable-jamming
　　For ordinary people, the impact of GPS is equally far-reaching. The normal operation of infrastructure such as power grids and ATM networks depends on the timing and location services provided by GPS. Therefore, any interference could cause widespread chaos.
　　Threat of GPS Jamming
　　Although GPS signals are transmitted by orbiting satellites, they are very low power and the received signals for ground users are susceptible to jamming. Jammers can be used by adversaries to deliberately block GPS signals and affect the positioning ability of combatants. In the United States, there have been multiple cases of jammers purchased over the Internet being used to deny location information. Although these personal privacy jammers are illegal, their popularity is worrying.
　　Innovation of BLISS Technology
　　To address this problem, the Aerospace Communications Systems Implementation Division developed BLISS technology. The technology uses a series of proprietary algorithms that can estimate the characteristics of high-power jammers to mitigate their impact on GPS signals. BLISS can be used independently as a device between the receiver and the antenna, or it can be integrated into future receiver chipsets to improve the overall anti-jamming capabilities of the system.
　　According to Dr. Philip Dafesh, architect of BLISS, the advantage of BLISS is that it can not only suppress interference within a small frequency range, but also effectively deal with jammers with rapidly changing frequencies. This means that BLISS can still maintain its performance when faced with jammers that quickly change frequency or phase characteristics.
　　Application of Military GPS
　　Military GPS plays a vital role on the battlefield. In actual combat, the military needs to rely on GPS to ensure accurate navigation and coordination. However, enemy interference may cause the warfighters to lose control of the battlefield situation, thus affecting the combat effectiveness.
　　The development of BLISS technology was initially funded by the Aerospace Innovation Laboratory (iLab), which is committed to exploring innovative solutions to space capability problems. With BLISS, we see how to turn ideas from the laboratory into viable real-world solutions.
　　The broad prospects of technology
　　The application prospects of BLISS technology are very broad. The technology has been licensed to Orolia's subsidiary Talen-X, which specializes in manufacturing precise time and frequency products to address global navigation satellite system issues. The addition of Talen-X will further promote the development and application of BLISS technology and enhance the anti-interference capabilities of GPS receivers.
　　Dr. Esteban Valles, Director of Digital Communications Implementation, said: "Our team is composed of diverse talents who use cutting-edge technologies from multiple fields to create and deliver viable proof-of-concept devices such as BLISS." This interdisciplinary collaboration is key to promoting technological innovation and ensuring that both the military and the public can maintain the necessary safety and reliability when facing the threat of GPS interference.