Research on Jamming Technology of Blind Signal Separation Receiving

A multi-time delay jamming signal was designed to deal with the difficulties brought by blind signal separation receiving. Firstly, model of the received signal was given, then the conditions of signal separation were studied. The relationship between delay differential and element cycle which would influence signal separation was studied from the modulation domain. From the analysis above, the inseparable rule between communication signal and jamming signal was given. Based on this rule, the appropriate delay time was chosen and the jamming signal was generated by several tapped delay lines. Simulation results show that multi-time delay jamming signal can work well antiseparation on JADE algorithm and viterbi algorithm.