Usually, radio communication is the main way to prevent radio communication reconnaissance as the anti-listening secrecy technology, which can handle the communication content in a special way, so that the true content of the communication can be hidden, so as to avoid the other party and unrelated personnel to obtain the communication content of a way. Among them, fax, telegraph and telephone use radio communication anti-listening secrecy technology means to enhance confidentiality. This paper mainly focuses on the radio communication anti-listening secrecy technology means of in-depth analysis, first expounded the signal and channel secrecy skills, secondly discussed the secret skills of the code, and finally discussed the communication confidentiality and anti-jamming.
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