系统内冗余或重复数据的度量，表明存储和潜在性能问题效率低下。
1 TC = 0.941 CC
1 CC = 1.063 TC
例子:
将15 涡轮代码冗余转换为卷积代码冗余：
15 TC = 14.118 CC
| 涡轮代码冗余 | 卷积代码冗余 |
|---|---|
| 0.01 TC | 0.009 CC |
| 0.1 TC | 0.094 CC |
| 1 TC | 0.941 CC |
| 2 TC | 1.882 CC |
| 3 TC | 2.824 CC |
| 5 TC | 4.706 CC |
| 10 TC | 9.412 CC |
| 20 TC | 18.824 CC |
| 30 TC | 28.235 CC |
| 40 TC | 37.647 CC |
| 50 TC | 47.059 CC |
| 60 TC | 56.471 CC |
| 70 TC | 65.882 CC |
| 80 TC | 75.294 CC |
| 90 TC | 84.706 CC |
| 100 TC | 94.118 CC |
| 250 TC | 235.294 CC |
| 500 TC | 470.588 CC |
| 750 TC | 705.882 CC |
| 1000 TC | 941.176 CC |
| 10000 TC | 9,411.765 CC |
| 100000 TC | 94,117.647 CC |
规则