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General Tech Technology & Software 2 years ago
Posted on 16 Aug 2022, this text provides information on Technology & Software related to General Tech. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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I'm pretty certain that RF jammers work by overpowering the target signal with their own higher powered signal at the same frequency. So the question is, how does anti-jammer technology negate the effects of a jammer?
One method is by actively steering the antenna (mechanically or electronically) to place a "null" in the direction of the jammer, reducing its signal strength significantly, while affecting the desired signal minimally, if at all.
Also, assuming the jammer signal strength isn't so strong that it saturates the receiver front end, advanced DSP techniques can be used to estimate and cancel the effects of the jamming signal. The communications protocol itself can be designed to optimize the ability to do this. The problem for the jammer is to mimic the desired signal closely enough to confuse the anti-jam algorithm.
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