Identification of self-synchronous scrambler of error-correcting codes under BER conditions

Abstract

For the identification of self-synchronous scrambler of error-correcting codes, a method of identification of adjacent travel ratios is proposed. Firstly, the mathematical model of the self-synchronous scrambler of error-correcting codes is given, then the biasedness of the self-synchronous scrambler of error-correcting codes is proved to be close to unbiased, secondly, the identification method of the adjacent travel ratio of error-correcting codes is given, the difference of the adjacent travel ratio of different error-correcting code unscrambler sequences is analyzed, the discriminant criterion of the maximum mean square difference fitting is established, and the identification of the generating polynomial of the self-synchronous scrambler of error-correcting codes is completed. The simulation shows that the algorithm can effectively identify the self-synchronous scrambler of linear block codes and convolutional codes and has good fault tolerance.