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題名 | Memory Management of Multi-Pointer Traceback Methods=多指標回溯法之記憶體管理 |
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作者姓名(中文) | 馬尚智; | 書刊名 | 中原學報 |
卷期 | 32:3 2004.09[民93.09] |
頁次 | 頁433-437 |
分類號 | 471.6511 |
關鍵詞 | 回溯法; 記憶體管理; 腓特比演算法; Memory management; Traceback method; The viterbi algorithm; |
語文 | 英文(English) |
中文摘要 | 排特比解碼器使用多指標回溯法或單指標回溯法 作為回溯架構。單指標回溯法比多指標回湖法需要較 少的記憶體與解碼延遲,然而單指標回溯法只能斷斷 續續而不能持續地將資料解田。我們提出一個新的多 指標回溯架構,它不僅比傳統多指標回溯法使用較少 的記憶體與解碼延遲,同時能夠持續地將資料解田。 |
英文摘要 | Traceback schemes used in Viterbi decoders can be categorized as multi-pointer method and one-pointer method. A traditional traceback scheme using one-pointer method has been shown to be better than one using multi-pointer method from the viewpoint of memory size and latency. By using one-pointer method, however, decoded message cannot be generated uni formly in time. Wepropose a novel traceback scheme which is based on multi-pointer method. The proposed scheme has a lower latency and requires a smaller memory than the scheme using multi-pointer method and is capable of decoding data uniformly. |
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