下列码组中属于HDB3码的是()。A、..1 0 0 0 0 0 0 0 0 1 1 1 0......B、+1 -1 0 0 -1 +1 0 0 +1 -1 +1 -1 0......C、+1 0 0 0 0 0 0 0 0-1 +1 -1......
下列码组中属于HDB3码的是()。
- A、..1 0 0 0 0 0 0 0 0 1 1 1 0......
- B、+1 -1 0 0 -1 +1 0 0 +1 -1 +1 -1 0......
- C、+1 0 0 0 0 0 0 0 0-1 +1 -1......
相关考题:
数字通信和模拟相对比,在相同路数情况下,数字信号占用频带窄