A Novel Blind Recovery Method of Self-synchronizing Scrambling Polynomial
Zhiping Huang · Acta Armamentarii · 2011
In order to get the self-synchronizing scrambling information of the unknown lines in digital communication,a novel method of blind detection of the order of self-synchronizing scrambling polynomial is proposed based on deeply studying the statistic characteristics of reduplicate codes in self-synchronizing scrambled sequence on condition that the number of 0 or 1 bit in source is imbalanced.Later,an algorithm for estimating the feedback position in self-synchronizing scrambling polynomial,which is better than the method of Walsh transformation,is offered with the idea of combinatorial imbalance.The results of experiment and simulation verify the correctness of the theory analysis and the validity of the whole algorithm.