Why is It Called blocker Jamming
Signal interference and anti-jamming have become a very real problem. The US military's unmanned, manned aircraft, cruise missiles, etc. have been affected by GPS interference more than once. To this end, on the one hand, the US military launched the third-generation GPS satellites to improve the anti-jamming capability of the GPS system.
Under severe interference conditions, the use of very low frequency radio (VLF) to achieve precise positioning, navigation and timing (PNT) technology. It is said that this project is called the "Navigation and Positioning in the Anti-signal jammer Environment" (STOIC) project. DARPA Strategic Technology Office (STO) project director David Trump revealed that DARPA will be between April and May next year. First system integration test, followed by live demonstration test at sea.
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