Automatic recognition of follower jamming of frequency-hopping communication

Abstract

The follower jamming has a strong threat to the Frequency Hopping (FH) communication. Before the follower jamming is suppressed, the correct recognition of follower jamming should be completed. In this paper, the Frequency Hopping-Gaussian filtered minimum shift keying (FH-GMSK) communication system is adopted as the carrier to research the follower jamming recognition of FH communication system. The automatic recognition of the follower jamming in the FH communication system is proposed by a set of feature parameters which are robust and insensitive to the jamming to signal ratio (JSR). This feature parameters can jointly extract the characteristics of the follower jamming in time, frequency and time-frequency at the conditions of no prior knowledge of the follower jamming. The simulated result shows that the correct recognition rate in FH communication system of the common follower jamming signals based on the method proposed in the reasonably high in the different JSR.