Computer Science ›› 2016, Vol. 43 ›› Issue (1): 149-153.doi: 10.11896/j.issn.1002-137X.2016.01.034

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Anti-jamming Method for Frequency Hopping Communication Based on Single Channel BSS and EMD

QI Yang-yang and YU Miao   

  • Online:2018-12-01 Published:2018-12-01

Abstract: Traditional blind source separation (BSS)methods can not be used in frequency hopping communication system with only one antenna equipped.To deal with this problem,a single channel BSS anti-jamming method based on empirical mode decomposition (EMD) was presented.Firstly,the signal received by single channel is expanded by EMD according to theoretical analysis and the simulation results,transforming the single channel underdetermined problem into the multi channel positive definite one.Then the totally-blind and semi-blind BSS algorithm are employed respectively to realize the separation of the signal and the jamming.Simulations were carried out under different signal to jamming ratio and signal to noise ratio to demonstrate the superior performance of the proposed method.

Key words: Frequency hopping communication,Single channel blind source separation,Empirical mode decomposition,Semi-blind source separation

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