Interlace Type Recognition Analysis under Non-Cooperative Conditions

In terms of non-cooperative communication, blind identification of signal interleaving type is an important part of channel coding identification. Based on the in-depth analysis of determinant and convolutional interleaving of linear block codes, a blind identification method based on sequence code weight is proposed. The method distinguishes the interleaving type by calculating the distribution probability of different code weights of the intercepted sequences. The simulation results show that the method can realize the interlace type identification quickly and has certain anti-error ability.