Identification of Feedback Logic for m-Sequence Based on Competitive Network

A method was proposed to identify the triple-correlation function (TCF) of an m-sequence by competitive network, thus to get its feedback logic. The method avoids possible error caused by identifying code element one by one in noise surroundings. First, get the TCF of an m-sequence. Then, input it into a competitive network to get the winning. The output of the victorious neuron remembers the primitive polynomial by the memorial network. That is the feedback logic of the resequence. Finally, computer simulation was made to identify resequences of different signal-noise-ratio (SNR). The simulation results proved the method to have strong-noise immunity.