利用有限链环的特点,研究了F2^α上长为2^s的重根循环码的结构和性质,给出了它们的距离分布;并讨论了一类特殊重根循环码〈(x+1)^2^m〉及其对偶码的重量分布.
Using the characters of the finite ring, the structure and properties of repeated root cyclic code over F2^α are studied, and their distance distributions are given. Then, the weight distributions of such 〈(x+1)^2^m〉 repeated-root cyclic code and its dual code are discussed.