研究了环F2+uF2上长为2^s的(1+u)-常循环码的各种距离.首先给出了环F2+uF2上长为2^s的(1+u)-常循环码的结构;然后利用这个结构,确定了环F2+uF2上长为2^s的(1+u)-常循环码的Hamming距离、Lee距离、Euclidean距离的分布.
Three kinds of distances of (1+u)-constacyclic codes of length 2^s over the ring F2 +uF2 were studied, and the structure of (1+u)-constacyclic codes of length 2^s over F2 +uF2 was given. Then, using the structure of such constacyclic codes, the distributions of the Hamming distances, Lee distances and Euclidean distances of such constacyclic codes were determined.