| 摘要 |
<p>In a maximum likelihood decoder, selectors (205 to 207) do not nay branch metric from branch metric calculating sections (202 to 204) when an undersampling occurs and select "0" values, and a path metric calculating section (208) calculates a path metric according to the "0" values and a path selection signal. In consideration of occurrence of undersampling that the selectors (205 to 207) select "0" value, an input signal wsdt_d to be subjected to maximum likelihood decoding and inputted into the branch metric calculating sections (202 to 204) is adjusted into a signal delayed by corresponding several clocks at the occurrence of undersampling. Therefore, even at the occurrence of undersampling, a correct decoding result is obtained, and thus normal operation is ensured.</p> |
