This paper first study the bidirectional asymmetrical generalized shrinkage sequence who is based on mm - sequence at GF(3), giving the distribution pattern of k length of the self-shriking sequence, and the cycle and the balance properties of safety index is analyzed; The following we use the generated self-shriking se-quence as driven sequence, in combination with another mm - sequence on GF(3),constructs a new bidirectional asymmetrical device who is self-shrinkage controlon on GF(3), detailed study the distribution of run length of 0 and 1, 2, research shows generated shrink control sequences with large cycle, high linear complexity,good balance, good run distribution and good low order autocorrelation. |