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This paper introduces a new approach based on blind source separation (BSS) to mit igate intentional interference in BFSK d igital co mmun ication systems using frequency hopping spread spectrum technique. The use of BSS is possible thanks to adopting an adequate selection block to distinguish between the useful signal and other undesirable signals, hence, circu mvent the problem of amb iguity of permutation. An analytical calculation of the probability of error to predict the performance is done. The simulat ion results showed the effectiveness of this approach, whatever the level of the JSR and without using the fast frequency hopping alternative or error-correcting codes.

Interference Rejection in FH/BFSK System Using Blind Source Separation