Narrow-band frequency hopping radio signal identification method
A radio signal and identification method technology, applied in the direction of electrical components, interference to communication, transmission system, etc., can solve the problems of easy masquerading as legitimate signals and loss of frequency hopping security, so as to prevent masquerading as legitimate signals and improve security sexual effect
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[0010] Such as figure 1 As shown, a narrowband frequency hopping radio signal identification method comprises the following steps:
[0011] By simultaneously or within short time intervals of a predetermined frequency (f 0 ) and adjacent frequencies on both sides (f 0 -f 1 , f 0 +f 1 ) radio signal for detection and demodulation;
[0012] Comparing the power corresponding to the predetermined frequency of the narrowband frequency hopping radio signal and the radio signals of adjacent frequencies on both sides;
[0013] When the power corresponding to the radio signals of adjacent frequencies on both sides is less than the first threshold value of the power corresponding to the predetermined frequency of the narrowband frequency hopping radio signal, and the power difference corresponding to the radio signals of adjacent frequencies on both sides is less than the second threshold value, it is judged that the The radio signal is a legal narrowband frequency hopping signal,...
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